A truck attempts to pull another vehicle across a flood damaged roadway as recovery efforts continue following Hurricane Maria near the village of San Lorenzo, Puerto Rico, October 7, 2017. REUTERS/Lucas Jackson

A soldier from the 1st Armored Division, Combat Aviation Brigade, drives a truck to deliver equipment and supplies to aid in recovery efforts following Hurricane Maria near Roosevelt Roads, Puerto Rico, October 3, 2017. Picture taken October 3, 2017. REUTERS/Lucas Jackson

Volunteers assist members of the Puerto Rican National Guard load food and water into their truck to take to communities as recovery efforts continue following Hurricane Maria in Ceiba, Puerto Rico, October 4, 2017. Picture taken October 4, 2017. REUTERS/Lucas Jackson

A tow truck drives away with with police cruiser used to transport a Prince George's County Police officer, later confirmed shot and killed, to Prince George's Hospital Center in Cheverly, Maryland March 13, 2016. Police officials said a fellow officer placed his wounded co-worker in the cruiser to drive him to the hospital for treatment after a suspect opened fire on a nearby police station. REUTERS/Jonathan Ernst

A man loads plastic boxes into a truck at Jamo Equipamentos Ltd. in Jaragua do Sul, Santa Catarina state, Brazil, October 20, 2015. To hear Brazil's government tell it, businesses like Jamo Equipamentos should be booming. With Brazil locked in its worst recession in three decades, the maker of heating equipment, like other exporters, should at least be enjoying a newfound competitive advantage: the plunge in the currency, which has lost a third of its value against the dollar this year. A weaker Brazilian real makes Jamo's products cheaper in China, India and other foreign markets. Brazil's government hopes the company and other manufacturers will take advantage and drive an export-led economic recovery. But a host of factors still hold exporters back, from a depreciation of currencies in many buyer markets to a reliance on imported raw materials to a global trade slump. Picture taken October 20, 2015. REUTERS/Paulo Prada

A getaway car of suspected gunman Vester L. Flanagan sits on a flatbed tow truck before being towed away on highway I-66 in Fauquier County, Virginia August 26, 2015. Two television journalists were shot and killed in Virginia on Wednesday in an attack during a live early-morning broadcast, and authorities said the suspected gunman Flanagan was a former employee of the TV station. Flanagan shot and wounded himself several hours later as police pursued him on the Virginia highway, police said. REUTERS/Kevin Lamarque

A getaway car of suspected gunman Vester L. Flanagan is towed away on a flatbed tow truck on highway I-66 in Fauquier County, Virginia August 26, 2015. Two television journalists were shot and killed in Virginia on Wednesday in an attack during a live early-morning broadcast, and authorities said the suspected gunman Flanagan was a former employee of the TV station. Flanagan shot and wounded himself several hours later as police pursued him on the Virginia highway, police said. REUTERS/Kevin Lamarque

U.S. President Barack Obama checks out a Ford pickup truck during a visit to the Ford Assembly Plant in Detroit, Michigan January 7, 2015. With Obama are Ford CEO Mark Fields (L) and Bill Ford (R). The visit's intent was to highlight the auto sector recovery. The event is part of Obama's tour this week to draw attention away from resurgent Republicans and preview his State of the Union Address in two weeks.
REUTERS/Kevin Lamarque (UNITED STATES - Tags: POLITICS TRANSPORT BUSINESS)

Members of a cleaning crew with "Bio Recovery Corporation" wearing personal protective equipment (PPE) push a barrel to be loaded in a truck of Centers for Disease Control and Prevention (CDC) after cleaning the apartment where Dr. Craig Spencer lives in New York October 24, 2014. New York and New Jersey will automatically quarantine medical workers returning from Ebola-hit West African countries and the U.S. government is considering the same step after a doctor who treated patients in Guinea came back infected, officials said on Friday. REUTERS/Eduardo Munoz (UNITED STATES - Tags: HEALTH SOCIETY)

A member of a cleaning crew with "Bio Recovery Corporation" wearing personal protective equipment (PPE) pushes a barrel to be loaded in a truck of Centers for Disease Control and Prevention (CDC) after cleaning the apartment where Dr. Craig Spencer lives in New York October 24, 2014. New York and New Jersey will automatically quarantine medical workers returning from Ebola-hit West African countries and the U.S. government is considering the same step after a doctor who treated patients in Guinea came back infected, officials said on Friday. REUTERS/Eduardo Munoz (UNITED STATES - Tags: HEALTH SOCIETY)

A member of a cleaning crew with "Bio Recovery Corporation" wearing personal protective equipment (PPE) carries a barrel to be loaded in a truck of Centers for Disease Control and Prevention (CDC) after cleaning the apartment where Dr. Craig Spencer lives in New York October 24, 2014. New York and New Jersey will automatically quarantine medical workers returning from Ebola-hit West African countries and the U.S. government is considering the same step after a doctor who treated patients in Guinea came back infected, officials said on Friday. REUTERS/Eduardo Munoz (UNITED STATES - Tags: HEALTH DISASTER)

A member of a cleaning crew with "Bio Recovery Corporation" wearing personal protective equipment (PPE) pushes a barrel to be loaded in a truck of Centers for Disease Control and Prevention (CDC) after cleaning the apartment where Dr. Craig Spencer lives in New York October 24, 2014. New York and New Jersey will automatically quarantine medical workers returning from Ebola-hit West African countries and the U.S. government is considering the same step after a doctor who treated patients in Guinea came back infected, officials said on Friday. REUTERS/Eduardo Munoz (UNITED STATES - Tags: HEALTH SOCIETY)

A member of a cleaning crew with "Bio Recovery Corporation" wearing personal protective equipment (PPE) pushes a barrel to be loaded in a truck of Centers for Disease Control and Prevention (CDC) after cleaning the apartment where Dr. Craig Spencer lives in New York October 24, 2014. Spencer, 33, who treated Ebola patients in West Africa, was moved with elaborate precautions from his Harlem apartment to Bellevue Hospital in Manhattan with a fever and tested positive for Ebola on Thursday, sparking concern about the spread of the disease in the country's most populous city. REUTERS/Eduardo Munoz (UNITED STATES - Tags: HEALTH SOCIETY)

A member of a cleaning crew with "Bio Recovery Corporation" wearing personal protective equipment (PPE) pushes a barrel to be loaded in a truck of Centers for Disease Control and Prevention (CDC) after cleaning the apartment where Dr. Craig Spencer lives in New York October 24, 2014. Spencer, 33, who treated Ebola patients in West Africa, was moved with elaborate precautions from his Harlem apartment to Bellevue Hospital in Manhattan with a fever and tested positive for Ebola on Thursday, sparking concern about the spread of the disease in the country's most populous city. REUTERS/Eduardo Munoz (UNITED STATES - Tags: HEALTH SOCIETY)

A member of a cleaning crew with "Bio Recovery Corporation" wearing personal protective equipment (PPE) pushes a barrel to be loaded in a truck of Centers for Disease Control and Prevention (CDC) after cleaning the apartment where Dr. Craig Spencer lives in New York October 24, 2014. Spencer, 33, who treated Ebola patients in West Africa, was moved with elaborate precautions from his Harlem apartment to Bellevue Hospital in Manhattan with a fever and tested positive for Ebola on Thursday, sparking concern about the spread of the disease in the country's most populous city. REUTERS/Eduardo Munoz (UNITED STATES - Tags: HEALTH DISASTER)

Members of a cleaning crew with "Bio Recovery Corporation" load barrels into a truck after taking them from the building where Dr. Craig Spencer lives in New York October 24, 2014. Spencer, 33, who treated Ebola patients in West Africa, was moved with elaborate precautions from his Harlem apartment to Bellevue Hospital in Manhattan with a fever and tested positive for Ebola on Thursday, sparking concern about the spread of the disease in the country's most populous city. REUTERS/Eduardo Munoz (UNITED STATES - Tags: HEALTH DISASTER)

Members of a cleaning crew with "Bio Recovery Corporation" load barrels into a truck after taking them from the building where Dr. Craig Spencer lives in New York October 24, 2014. Spencer, 33, who treated Ebola patients in West Africa, was moved with elaborate precautions from his Harlem apartment to Bellevue Hospital in Manhattan with a fever and tested positive for Ebola on Thursday, sparking concern about the spread of the disease in the country's most populous city. REUTERS/Eduardo Munoz (UNITED STATES - Tags: HEALTH DISASTER)

A member of a cleaning crew with "Bio Recovery Corporation" changes the sign on the side of a truck during work at the building where Dr. Craig Spencer lives in New York October 24, 2014. Spencer, 33, who treated Ebola patients in West Africa, was moved with elaborate precautions from his Harlem apartment to Bellevue Hospital in Manhattan with a fever and tested positive for Ebola on Thursday, sparking concern about the spread of the disease in the country's most populous city. REUTERS/Brendan McDermid (UNITED STATES - Tags: HEALTH DISASTER)

A member of a cleaning crew with "Bio Recovery Corporation" changes the sign on the side of a truck during work at the building where Dr. Craig Spencer lives in New York October 24, 2014. Spencer, 33, who treated Ebola patients in West Africa, was moved with elaborate precautions from his Harlem apartment to Bellevue Hospital in Manhattan with a fever and tested positive for Ebola on Thursday, sparking concern about the spread of the disease in the country's most populous city. REUTERS/Mike Segar (UNITED STATES - Tags: HEALTH DISASTER)

Workers with "Bio Recovery Corporation" change the placard on the side of the truck at the building where Dr. Craig Spencer lives in New York October 24, 2014. Spencer, 33, who treated Ebola patients in West Africa, was moved with elaborate precautions from his Harlem apartment to Bellevue Hospital in Manhattan with a fever and tested positive for Ebola on Thursday, sparking concern about the spread of the disease in the country's most populous city. REUTERS/Mike Segar (UNITED STATES - Tags: HEALTH DISASTER)

Mechanics remove the car of Williams Formula One driver Felipe Massa of Brazil from the recovery truck after he crashed during the first practice session for the British Grand Prix at the Silverstone Race circuit, central England, July 4, 2014. REUTERS/Francois Lenoir (BRITAIN - Tags: SPORT MOTORSPORT F1)

Mechanics remove the car of Williams Formula One driver Felipe Massa of Brazil from the recovery truck after he crashed during the first practice session for the British Grand Prix at the Silverstone Race circuit, central England, July 4, 2014. REUTERS/Francois Lenoir (BRITAIN - Tags: SPORT MOTORSPORT F1)

James Woodham (L), also known as "Catfish", and his neighbor Clayton Grund (R) shovels out the bed of Woodham's truck at the Crescent Lake neighborhood in Pensacola, Florida, May 2, 2014. A state of emergency was declared on Wednesday in Pensacola's Escambia County after being inundated by as much as two feet of relentless rain over a 24-hour period, as severe thunderstorms raced across the northern part of the state. Emergency officials fought to save motorists stranded by flood waters. REUTERS/Michael Spooneybarger (UNITED STATES - Tags: ENVIRONMENT DISASTER)

A truck driver looks on, as employees at Mavrikos Imports, a marine supply company, unload a truck at company's warehouse at Kaminia suburb in Piraeus, near Athens April 3, 2014. Greece is experiencing a remarkable financial recovery. Just two years ago, the country was expected to default and exit the euro, possibly setting off a messy unravelling of the entire currency bloc. Today, after a tough regime of layoffs, wage cuts and reductions in government spending, factories are beginning to hum again, Greeks are starting to buy cars and other products again and the country is being courted in financial markets. The government is looking to the end of a tough international emergency aid programme at the end of the year. To match Insight GREECE-ECONOMY/ Picture taken April 3, 2014. REUTERS/Yorgos Karahalis (GREECE - Tags: POLITICS BUSINESS)

A labourer stands on a truck carrying construction materials at a construction site of residential buildings in Noida on the outskirts of New Delhi November 29, 2013. India's economic growth probably picked up slightly in the September quarter, but weak investment levels have tempered hopes that strong rural demand and a rebound in exports will drive a sustained recovery ahead of elections due early next year. REUTERS/Adnan Abidi (INDIA - Tags: BUSINESS CONSTRUCTION REAL ESTATE)

A Dutch motorsport enthusiast looks at a damaged Ferrari that is being towed away following its crash, at the Breidscheid section of the legendary 13-mile (21-km) Nuerburgring race track, in the western German low mountain range of the Eifel near Adenau, October 27, 2013. Ever since Niki Lauda's Ferrari exploded in a fireball on the Nuerburgring in 1976, the circuit has been deemed too dangerous for Formula One, instead hosting car companies putting new models through their paces and amateurs trying to set records on a rush of adrenaline. But after local politicians loaded it with debt equating to around 50 years worth of profit, the famed and feared track went into administration and is now looking for a new owner. Completed in 1927, the Ring was built to showcase German auto engineering and racing prowess, and now the country's deep-pocketed carmakers have been cited as potential bidders. Picture taken on October 27, 2013. REUTERS/Wolfgang Rattay (GERMANY - Tags: SPORT MOTORSPORT TRANSPORT SOCIETY)

A rescue worker pushes a car on to a recovery truck amongst the wreckage of some of the 100 vehicles involved in multiple collisions, which took place in dense fog during the morning rush hour, on the Sheppey Bridge in Kent, east of London, September 5, 2013. Eight people were seriously injured and dozens hurt in the multiple crashes. REUTERS/Suzanne Plunkett (BRITAIN - Tags: TRANSPORT DISASTER)

A rescue worker gestures in front of recovery trucks lined up to collect over 100 vehicles involved in multiple collisions, which took place in dense fog during the morning rush hour, on the Sheppey Bridge in Kent, east of London, September 5, 2013. Eight people were seriously injured and dozens hurt in the multiple crashes. REUTERS/Suzanne Plunkett (BRITAIN - Tags: TRANSPORT DISASTER)

Recovery trucks line up to collect over 100 vehicles involved in multiple collisions, which took place in dense fog during the morning rush hour, on the Sheppey Bridge in Kent, east of London, September 5, 2013. Eight people were seriously injured and dozens hurt in the multiple crashes. REUTERS/Suzanne Plunkett (BRITAIN - Tags: TRANSPORT DISASTER)

Workers load containers from trucks onto a cargo ship at a port in Tokyo August 19, 2013. Japanese exports rose in July at the fastest annual pace in nearly three years as the benefits of a weak yen finally started to take hold, and brisk sales of cars and electronics to the United States, Asia and Europe showed a recovery in overseas demand. REUTERS/Toru Hanai (JAPAN - Tags: BUSINESS POLITICS EMPLOYMENT)

Workers load containers from trucks onto a cargo ship at a port in Tokyo August 19, 2013. Japanese exports rose in July at the fastest annual pace in nearly three years as the benefits of a weak yen finally started to take hold, and brisk sales of cars and electronics to the United States, Asia and Europe showed a recovery in overseas demand. REUTERS/Toru Hanai (JAPAN - Tags: BUSINESS POLITICS EMPLOYMENT)

A truck drives past shipping containers at a port in Ningbo, Zhejiang province July 9, 2013. China's exports fell 3.1 percent in June from a year ago, the first decline since January 2012 and missing expectations, adding to concerns about weakness in the recovery of the world's second-largest economy. Picture taken July 9, 2013. REUTERS/William Hong (CHINA - Tags: BUSINESS)

A worker walks past trucks as they line up to upload containers onto a ship at a port in Ningbo, Zhejiang province July 9, 2013. China's exports fell 3.1 percent in June from a year ago, the first decline since January 2012 and missing expectations, adding to concerns about weakness in the recovery of the world's second-largest economy. Picture taken July 9, 2013. REUTERS/William Hong (CHINA - Tags: BUSINESS)

A worker welds a truck at a workshop in the southern Indian city of Chennai May 31, 2013. India's economic growth began a feeble recovery in the first quarter of 2013, but weak private consumption, capital investment and slowing public spending offered little hope for a fast rebound in coming quarters. REUTERS/Babu (INDIA - Tags: BUSINESS)

Red Bull Formula One driver Mark Webber of Australia waits for a recovery truck after his car ran out of fuel during the second quarter of the qualifying session for the Chinese F1 Grand Prix at the Shanghai International Circuit, April 13, 2013. REUTERS/Aly Song (CHINA - Tags: SPORT MOTORSPORT F1 TPX IMAGES OF THE DAY)

A trailer truck drives past containers at a port in Ningbo, Zhejiang province, April 10, 2013. China saw a mild trade deficit of $884 million in March as a forecast-busting 14.1 percent year on year surge in imports eclipsed export growth of 10 percent, signalling that domestic demand was gathering steam needed to drive economic recovery. REUTERS/William Hong (CHINA - Tags: BUSINESS)

A man rests in a truck next to a steel factory in Beijing April 1, 2013. Stronger domestic demand helped China's factory activity to rebound in March, with new orders up sharply in a sign that the underlying economic recovery is strong enough to weather any risks from patchy export performance, surveys showed on Monday. REUTERS/Kim Kyung-Hoon (CHINA - Tags: BUSINESS INDUSTRIAL SOCIETY)

Emergency personnel work on recovery efforts after a truck left Highway 401 and plunged into a river near Woodstock, Ontario, March 5, 2013 killing 2 people. The accident closed the busy highway for many hours.
REUTERS/Geoff Robins (CANADA - Tags: DISASTER TRANSPORT)

A worker uses a hammer to break apart a used truck engine at a small scale factory in Kolkata February 12, 2013. India's industrial production unexpectedly shrank for a second straight month in December, weighed down by weak investment and consumer demand, casting doubt on Finance Minister P. Chidambaram's view that Asia's third largest economy is showing signs of recovery. REUTERS/Rupak De Chowdhuri (INDIA - Tags: BUSINESS EMPLOYMENT)

A shovel truck dumps a pile of debris from Hurricane Sandy at Jacob Riis State Park in the Rockaways area of New York's borough of Queens, January 14, 2013. Congress is set to take up the Sandy Recovery Improvement Act, which would expedite the payment of disaster relief funds, this week. REUTERS/Brendan McDermid (UNITED STATES - Tags: ENVIRONMENT DISASTER POLITICS)

Trucks are loaded up to haul away debris from Hurricane Sandy at Jacob Riis State Park in the Rockaways area of New York's borough of Queens, January 14, 2013. Congress is set to take up the Sandy Recovery Improvement Act, which would expedite the payment of disaster relief funds, this week. REUTERS/Brendan McDermid (UNITED STATES - Tags: ENVIRONMENT DISASTER POLITICS)

Trucks line up to haul away debris from Hurricane Sandy at Jacob Riis State Park in the Rockaways area of New York's borough of Queens, January 14, 2013. Congress is set to take up the Sandy Recovery Improvement Act, which would expedite the payment of disaster relief funds, this week. REUTERS/Brendan McDermid (UNITED STATES - Tags: ENVIRONMENT DISASTER POLITICS)

Containers are loaded on trucks at a container area at a port in Tokyo December 19, 2012. Japan's exports fell in November from a year earlier to mark the sixth straight month of declines, a worrying sign that an export recovery may be muted by weak overseas demand - bolstering the case for further monetary stimulus this week. REUTERS/Yuriko Nakao (JAPAN - Tags: MARITIME BUSINESS)

American flags wave in the breeze while an excavator loads building debris onto a truck on Ocean Avenue in Belmar, New Jersey November 8, 2012, as recovery efforts continue in the aftermath of Hurricane Sandy. A nor'easter added bitter cold, rain, snow and powerful winds to the misery of disaster victims whose homes were destroyed or power was knocked out by Sandy, which smashed ashore on Oct. 29 and caused widespread flooding. REUTERS/Tom Mihalek (UNITED STATESENVIRONMENT - Tags: ENVIRONMENT DISASTER TPX IMAGES OF THE DAY)

People wait for gas as a fuel truck arrives at a Hess fueling station in Great Neck, New York November 1, 2012. A fuel supply crisis stalling the New York City area's recovery from Hurricane Sandy and reviving memories of the 1970s gasoline shortages stem from multiple factors, ranging from flooding to power outages to a diesel spill.
REUTERS/Shannon Stapleton (UNITED STATES - Tags: ENVIRONMENT DISASTER ENERGY TRANSPORT)

The car of Mercedes Formula One driver Michael Schumacher of Germany is lifted by a crane after it slammed into the back of Formula One French driver Jean-Eric Vergne's Toro Rosso during the Singapore F1 Grand Prix at the Marina Bay street circuit in Singapore September 23, 2012. Schumacher was handed a 10-place penalty on the grid for the upcoming Japanese Grand Prix as a consequence of the crash. REUTERS/Tan Shung Sin (SINGAPORE - Tags: SPORT MOTORSPORT SPORT MOTORSPORT F1 TPX IMAGES OF THE DAY)

A child looks on from insiude a pick up truck parked at a market in the town of Ixmiquilpan, in the Mexican state of Hidalgo April 24, 2012. Combined with tighter border security, the U.S. economy?s slow recovery from recession and drug violence along the Mexican side of the border, the tougher deportation policy has sent net migration flows from Mexico to ?El Norte? falling to zero for the first time in living memory. Picture taken April 24, 2012. To match Feature MEXICO-USA/IMMIGRATION. REUTERS/Tomas Bravo (MEXICO - Tags: SOCIETY IMMIGRATION BUSINESS EMPLOYMENT)

A farmer leans on his pick-up truck as he waits for customers at a market in the town of Ixmiquilpan, in the Mexican state of Hidalgo April 24, 2012. Combined with tighter border security, the U.S. economy?s slow recovery from recession and drug violence along the Mexican side of the border, the tougher deportation policy has sent net migration flows from Mexico to ?El Norte? falling to zero for the first time in living memory. Picture taken April 24, 2012. To match Feature MEXICO-USA/IMMIGRATION. REUTERS/Tomas Bravo (MEXICO - Tags: SOCIETY IMMIGRATION BUSINESS EMPLOYMENT)

The grill of a Ford F-Series pickup truck is seen at Koons Ford in Silver Spring, Maryland April 3, 2012. U.S. auto sales rose more than 15 percent in March, preliminary data showed, as rising consumer confidence and cheap financing quickened the pace of a sluggish recovery more than two years in the making.
REUTERS/Gary Cameron (UNITED STATES - Tags: TRANSPORT BUSINESS)

A Ford F-Series pickup truck is seen at Koons Ford in Silver Spring, Maryland April 3, 2012. U.S. auto sales rose more than 15 percent in March, preliminary data showed, as rising consumer confidence and cheap financing quickened the pace of a sluggish recovery more than two years in the making.
REUTERS/Gary Cameron (UNITED STATES - Tags: TRANSPORT BUSINESS)

A Ford F-Series pickup truck is seen at Koons Ford in Silver Spring, Maryland April 3, 2012. U.S. auto sales rose more than 15 percent in March, preliminary data showed, as rising consumer confidence and cheap financing quickened the pace of a sluggish recovery more than two years in the making.
REUTERS/Gary Cameron (UNITED STATES - Tags: TRANSPORT BUSINESS)

Mercedes Formula One driver Michael Schumacher of Germany (2nd L) climbs into the cab of a flatbed recovery truck carrying his car during the third practice session of the Australian F1 Grand Prix at the Albert Park circuit in Melbourne March 17, 2012. REUTERS/Daniel Munoz (AUSTRALIA - Tags: SPORT MOTORSPORT)

Flames erupt from a jet dryer after it was hit by Juan Pablo Montoya of Colombia in his number 42 Chevrolet during the NASCAR Sprint Cup Series 54th Daytona 500 race at the Daytona International Speedway in Daytona Beach, Florida, February 27, 2012. REUTERS/Pierre Ducharme (UNITED STATES - Tags: SPORT MOTORSPORT TPX IMAGES OF THE DAY)

A pick-up truck drives along Independence Parkway near oil refineries and storage facilities south of downtown Houston January 30, 2012. Union and oil company negotiators resumed talks on Monday after union leaders told workers to prepare for a strike within 48 hours that could shut down 6 percent of U.S. refinery capacity and cause gasoline prices to rise at a time when the country is struggling to sustain a fragile economic recovery. REUTERS/Richard Carson (UNITED STATES - Tags: BUSINESS EMPLOYMENT ENERGY)

Workers remove a trailer truck from an icy pond near Monticello, Minnesota, northwest of Minneapolis January 6, 2012. The Target trailer truck went off Interstate 94 and onto the pond, sliding 100 to 200 yards (91 to 183 meters) until it broke through the ice on Friday morning. The driver crawled out of the trailer and across the 6-inch-thick ice (15.25 cm) to safety, and was treated at a local hospital for minor injuries before he was released. REUTERS/Craig Lassig (UNITED STATES - Tags: DISASTER ENVIRONMENT TRANSPORT TPX IMAGES OF THE DAY)

A man loads election materials into a truck for transportation to different voting zones in Vridi, Abidjan December 10, 2011. Ivory Coast goes to the polls on Sunday to elect a new parliament, a key step in its recovery from a civil war. REUTERS/ Thierry Gouegnon (IVORY COAST - Tags: POLITICS ELECTIONS)

Men play chess as they sit on the back of a tow truck in Caracas May 30, 2011. REUTERS/Jorge Silva (VENEZUELA - Tags: SOCIETY)

Volunteers unload donated supplies from a truck in Joplin, Missouri May 26, 2011. TThe threat of a new tornado hitting Joplin passed by late on Tuesday. But a line of storms plowed through Oklahoma on Tuesday, where at least five people were killed and many more injured in tornadoes near Oklahoma City. Rescue and recovery teams scoured the wreckage of the small Midwestern city, which was devastated by a high-velocity whirl of wind that destroyed about 2,000 buildings. REUTERS/Eric Thayer (UNITED STATES - Tags: DISASTER ENVIRONMENT)

Supporters of Peru's presidential candidate Ollanta Humala push a campaign truck which got stuck in the sand outside a meeting on the outskirts of Lima May 25, 2011. Right-wing lawmaker Keiko Fujimori holds a lead over left-wing Humala just two weeks before Peru's June 5 presidential election, but pollsters say the race could still be won be either candidate. REUTERS/Enrique Castro Mendivil (PERU - Tags: POLITICS ELECTIONS IMAGES OF THE DAY)

Belgian riot police stand behind a truck blocking access to the European Union Council during a protest by European workers and trade union representatives in Brussels March 24, 2011. Tens of thousands of people marched through Brussels on Thursday to urge European leaders holding a two-day summit in the Belgian capital to scrap or ease austerity measures, which unions say will slow economic recovery and punish the poor. REUTERS/Francois Lenoir (BELGIUM - Tags: CIVIL UNREST POLITICS BUSINESS CRIME LAW)