A visitor examines a Kalashnikov submachine gun during the Russia-Africa Economic Forum Exhibition on the sidelines of the Russia-Africa Summit and Economic Forum in the Black sea resort of Sochi, Russia, October 24, 2019. Sergei Chirikov/Pool via REUTERS

A woman arranges a banner with a drawing of a submachine gun that reads "Stop" during a demonstration against military operation that killed Evaldo Rosa dos Santos with 80 shots into his car in Rio de Janeiro, in Sao Paulo, Brazil, April 14, 2019. REUTERS/Nacho Doce

Women hold a banner with a drawing of a submachine gun that reads "Stop" during a demonstration against military operation that killed Evaldo Rosa dos Santos with 80 shots into his car in Rio de Janeiro, in Sao Paulo, Brazil, April 14, 2019. REUTERS/Nacho Doce

A man stands next to an industrial washing machine which hides one of the entrances to the Ayalon Institute, a factory for the production of 9mm bullets for the Sten submachine gun that was secretly built in 1945 by Jewish paramilitary group Hahagana during the British Mandate, in Rehovot, Israel, June 14, 2018. Picture taken June 14, 2018. REUTERS/Ronen Zvulun

A member of the Norh Korean armed forces inspects a submachine gun "Vityaz-SN" at the stand of Russian state-owned arms exporter Rosoboronexport during the annual Moscow Conference on International Security (MCIS) in Moscow, Russia April 4, 2018. REUTERS/Sergei Karpukhin

An armed police officer of the Malta Police Special Intervention Unit armed with a CZ Scorpion EVO 3 A1 submachine gun provides security as three men, accused of the assassination of anti-corruption journalist Daphne Caruana Galizia last year, arrive at the Courts of Justice for the continuation of the compilation of evidence, in Valletta, Malta, March 26, 2018. REUTERS/Darrin Zammit Lupi

An armed police officer of the Malta Police Special Intervention Unit armed with a CZ Scorpion EVO 3 A1 submachine gun provides security as three men, accused of the assassination of anti-corruption journalist Daphne Caruana Galizia last year, arrive at the Courts of Justice for the continuation of the compilation of evidence, in Valletta, Malta, March 26, 2018. REUTERS/Darrin Zammit Lupi

An armed police officer of the Malta Police Special Intervention Unit armed with a CZ Scorpion EVO 3 A1 submachine gun provides security as three men, accused of the assassination of anti-corruption journalist Daphne Caruana Galizia last year, arrive at the Courts of Justice for the continuation of the compilation of evidence, in Valletta, Malta, March 26, 2018. REUTERS/Darrin Zammit Lupi

Gang life in the poor Central American country of El Salvador is hard, but for a dozen former members of the feared 18th Street Gang, building a new life outside is no less difficult. Wilfredo Gomez joined a gang as an adolescent in Los Angeles, the U.S. city to which his parents emigrated. He said he was enticed by the guns, the girls and the camaraderie of gang life. He wound up in jail before being deported back to his native country. With few links to El Salvador, he quickly returned to gang life. A 10-year jail sentence for stealing an Uzi submachine gun gave him time to reckon with his choices. REUTERS/Jose Cabezas SEARCH "CABEZAS BAKERY" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY. Matching text: ELSALVADOR-GANGS/

German riot police with submachine guns patrol the Christmas market prior to its official opening in Frankfurt, Germany, November 27, 2017. REUTERS/Kai Pfaffenbach TPX IMAGES OF THE DAY

German riot police with submachine guns patrol the Christmas market prior to its official opening in Frankfurt, Germany, November 27, 2017. REUTERS/Kai Pfaffenbach

Police officer holds a Heckler & Koch MP5 submachine gun during the Hells Angels demonstration in Berlin, Germany, September 9, 2017. REUTERS/Hannibal Hanschke

Chinese artist Li Hongbo flattens a paper sculpture in shape of MP5 submachine gun for his work "Ocean of Flowers" at Eight One Art Museum in Beijing, China June 14, 2017. According to Li, nearly 2000 sculptures in shape of different weapons, made of hundreds of pieces of brightly coloured paper, reflect his thoughts about desire, destruction, hatred and war. Picture taken June 14, 2017. REUTERS/Jason Lee

German policemen patrol with submachine gun at the Brandenburg Gate, ahead of the upcoming New Year's Eve celebrations in Berlin, Germany, December 30, 2016. REUTERS/Fabrizio Bensch

German police patrol with submachine guns at the Christmas market at Breitscheid square in Berlin, Germany, December 30, 2016, following an attack by a truck which ploughed through a crowd at the market. REUTERS/Fabrizio Bensch

German police men patrol with submachine gun at the Brandenburg Gate, ahead of the upcoming New Year's Eve celebrations in Berlin, Germany, December 30, 2016. REUTERS/Fabrizio Bensch

A German police man patrols with submachine gun at the Brandenburg Gate, ahead of the upcoming New Year's Eve celebrations in Berlin, Germany, December 30, 2016. REUTERS/Fabrizio Bensch

German police men patrol with submachine gun at the Brandenburg Gate, ahead of the upcoming New Year's Eve celebrations in Berlin, Germany, December 30, 2016. REUTERS/Fabrizio Bensch

German police men patrol with submachine gun at the Brandenburg Gate, ahead of the upcoming New Year's Eve celebrations in Berlin, Germany, December 30, 2016. REUTERS/Fabrizio Bensch

German policemen patrol with submachine gun at the Brandenburg Gate, ahead of the upcoming New Year's Eve celebrations in Berlin, Germany, December 30, 2016. REUTERS/Fabrizio Bensch

A man browses a model of the Vityaz submachine gun at the newly opened Gunmaker Kalashnikov souvenir store in Moscow's Sheremetyevo airport, Russia, August 22, 2016. REUTERS/Maxim Shemetov

A female German police officer from the federal state of North Rhine-Westphalia fires a 9mm Heckler & Koch MP5 submachine gun at a shooting range of a regional police training centre in Dortmund, western Germany May 4, 2016. REUTERS/Wolfgang Rattay

A female German police officer from the federal state of North Rhine-Westphalia fires a 9mm Heckler & Koch MP5 submachine gun at a shooting range of a regional police training centre in Dortmund, western Germany May 4, 2016. REUTERS/Wolfgang Rattay

A German federal police Bundespolizei officer observes with a Heckler & Koch MP5 submachine gun a drill at Ostbahnhof train station in Berlin, Germany April 4, 2016. REUTERS/Fabrizio Bensch

A German federal police officer guards with an Heckler & Koch MP5 submachine gun attends a drill at Ostbahnhof train station in Berlin, Germany April 4, 2016. REUTERS/Fabrizio Bensch

Soldiers arrive to repel an attack on an air force base in Peshawar, Pakistan, September 18, 2015. Taliban gunmen stormed a Pakistani Air Force base in the volatile northwestern city of Peshawar early on Friday, a military spokesman said, the first major attack on a military installation in several weeks. REUTERS/Fayaz Aziz

A Free Syrian Army fighter fires a weapon inside a damaged building during clashes with forces loyal to Syria's President Bashar al-Assad at the frontline in Handarat area, north of Aleppo May 21, 2015. REUTERS/Hosam Katan TPX IMAGES OF THE DAY

A Burundi military officer holds his machine gun as supporters of the Conseil National pour la Defense de la Democratie - Forces pour Defense de la Democratie (CNDD-FDD) party leave after their congress in the capital Bujumbura, April 25, 2015. Burundi's ruling party chose President Nkurunziza to run for a third five-year term on Saturday, a move critics say is unconstitutional and may trigger unrest in the east African country. Opposition groups promised protests if Nkurunziza ran, saying it would undermine a peace deal that has kept the country calm for a decade since an ethnically fuelled civil war ended in 2005. REUTERS/Thomas Mukoya TPX IMAGES OF THE DAY

A rebel fighter of al-Jabha al-Shamiya (the Shamiya Front) fires his weapon at the frontline against Islamic State fighters on the outskirts of Mare town, north of Aleppo March 24, 2015. REUTERS/Sultan Kitaz

A fighter from Misrata uses a cell phone near Sirte March 15, 2015. REUTERS/Goran Tomasevic (LIBYA - Tags: CIVIL UNREST)

Steve Parker, a former Marine who now makes accessories for firearms, is seen holding his KRISS Vector submachine gun in his home office in Fayetteville, North Carolina September 26, 2014. It's not uncommon in Fayetteville to hear of soldiers who have served multiple year-long tours of duty, returning again and again to guerilla-style wars with no clearly defined front lines. Some 5,000 troops from Fort Bragg are still fighting and dying in Afghanistan, even though that war long ago slipped off the front pages of U.S. newspapers. With one war over and another winding down, more soldiers are back in Fayetteville now than during the height of the deployments between 2008 and 2011.?Still, President Obama has already sent 1,600 Special Operations commandos back to Iraq. Americans are flying helicopter missions ("boots in the air") and military leaders have hinted that the conflict could soon require more boots on the ground. Picture taken September 26, 2014. To match Insight USA-MILITARY/FORTBRAGG REUTERS/Chris Keane (UNITED STATES - Tags: POLITICS SOCIETY CONFLICT)

Steve Parker, a former Marine who now makes accessories for firearms, is seen holding his KRISS Vector submachine gun in his home office in Fayetteville, North Carolina September 26, 2014. It's not uncommon in Fayetteville to hear of soldiers who have served multiple year-long tours of duty, returning again and again to guerilla-style wars with no clearly defined front lines. Some 5,000 troops from Fort Bragg are still fighting and dying in Afghanistan, even though that war long ago slipped off the front pages of U.S. newspapers. With one war over and another winding down, more soldiers are back in Fayetteville now than during the height of the deployments between 2008 and 2011.?Still, President Obama has already sent 1,600 Special Operations commandos back to Iraq. Americans are flying helicopter missions ("boots in the air") and military leaders have hinted that the conflict could soon require more boots on the ground. Picture taken September 26, 2014. To match Insight USA-MILITARY/FORTBRAGG REUTERS/Chris Keane (UNITED STATES - Tags: POLITICS SOCIETY CONFLICT MILITARY BUSINESS)

Steve Parker, a former Marine who now makes accessories for firearms, is seen holding his KRISS Vector submachine gun in his home office in Fayetteville, North Carolina September 26, 2014. It's not uncommon in Fayetteville to hear of soldiers who have served multiple year-long tours of duty, returning again and again to guerilla-style wars with no clearly defined front lines. Some 5,000 troops from Fort Bragg are still fighting and dying in Afghanistan, even though that war long ago slipped off the front pages of U.S. newspapers. With one war over and another winding down, more soldiers are back in Fayetteville now than during the height of the deployments between 2008 and 2011.?Still, President Obama has already sent 1,600 Special Operations commandos back to Iraq. Americans are flying helicopter missions ("boots in the air") and military leaders have hinted that the conflict could soon require more boots on the ground. Picture taken September 26, 2014. To match Insight USA-MILITARY/FORTBRAGG REUTERS/Chris Keane (UNITED STATES - Tags: POLITICS SOCIETY CONFLICT)

Turkish soldiers keep watch near Mursitpinar border crossing on the Turkish-Syrian border in the Turkish town of Suruc in southeastern Sanliurfa province October 4, 2014. REUTERS/Murad Sezer (TURKEY - Tags: MILITARY CONFLICT POLITICS TPX IMAGES OF THE DAY)

A Ukrainian serviceman checks his weapon as a fellow soldier rests on a bed near the eastern Ukrainian town of Debaltseve, Donetsk Region August 6, 2014. REUTERS/Valentyn Ogirenko (UKRAINE - Tags: CIVIL UNREST CONFLICT MILITARY TPX IMAGES OF THE DAY)

A Ukrainian soldier stands near a destroyed military vehicle of pro-Russian separatists just outside the eastern Ukrainian town of Slaviansk July 7, 2014. Pro-Russian rebels erected new barricades on the streets of Donetsk on Monday, preparing to make a stand in the city of a million people after losing their bastion in the town of Slaviansk in the worst defeat of their three-month uprising. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS CIVIL UNREST MILITARY TPX IMAGES OF THE DAY)

Shi'ite volunteers from the Supreme Islamic Iraqi Council watch a man handle a weapon during a training in Najaf, June 24, 2014. U.S. Secretary of State John Kerry held crisis talks with leaders of Iraq's autonomous Kurdish region on Tuesday urging them to stand with Baghdad in the face of a Sunni insurgent onslaught that threatens to dismember the country. REUTERS/Ahmad Mousa (IRAQ - Tags: CIVIL UNREST POLITICS)

Women walk towards a U.N. peacekeeper patrolling in Bentiu, Unity State, June 18, 2014. Around 39,000 people have found shelter at the U.N. base in Bentiu. About 1.5 million people have been displaced, including 378,000 who fled to neighbouring countries according to the Office for the Coordination of Humanitarian Affairs (OCHA). REUTERS/Andreea Campeanu (SOUTH SUDAN - Tags: CIVIL UNREST TPX IMAGES OF THE DAY POLITICS)

A pro-Russian militant stands at a front line rebel position in the outskirts of the eastern Ukrainian town of Slaviansk May 19, 2014. REUTERS/Yannis Behrakis (UKRAINE - Tags: POLITICS CIVIL UNREST CONFLICT TPX IMAGES OF THE DAY)

A visitor checks a Romanian made LP-7, 9x19 mm submachine gun during the International tri-service defense Exhibition and Conference dedicated to Defense, Aerospace, Homeland Security, Cyber Security and Safety & Security in Bucharest May 14, 2014. REUTERS/Radu Sigheti (ROMANIA - Tags: MILITARY)

Pro-Russian armed men stand guard as people hold a rally to mark and celebrate the announcement of the results of the referendum on the status of Luhansk region in Luhansk May 12, 2014. Pro-Moscow rebel leaders in eastern Ukraine called on Monday for their region to become part of Russia after declaring victory in a weekend referendum on self-rule. REUTERS/Valentyn Ogirenko (UKRAINE - Tags: POLITICS CIVIL UNREST ELECTIONS TPX IMAGES OF THE DAY)

A pro-Russia rebel mans a front line position under a train wagon south of the eastern Ukrainian city of Slaviansk May 12, 2014 following early morning shelling by Ukrainian forces. Pro-Moscow rebels declared a resounding victory in a referendum on self-rule for eastern Ukraine, with some saying that meant independence and others eventual union with Russia as fighting flared in a conflict increasingly out of control. REUTERS/Yannis Behrakis (UKRAINE - Tags: POLITICS CIVIL UNREST CONFLICT TPX IMAGES OF THE DAY)

An armed pro-Russia man speaks to a woman riding a scooter at a checkpoint near the town of Slaviansk, in eastern Ukraine
May 10, 2014.
REUTERS/Baz Ratner (UKRAINE - Tags: POLITICS CIVIL UNREST)

An injured pro-Russian armed man is helped out of a car by a medical staff at a hospital at the town of Slaviansk, eastern Ukraine, May 5, 2014. Pro-Russian separatists ambushed Ukrainian forces on Monday, triggering heavy fighting on the outskirts of the rebel stronghold of Slaviansk, Interior Minister Arsen Avakov was quoted as saying. REUTERS/Baz Ratner (UKRAINE - Tags: POLITICS CIVIL UNREST TPX IMAGES OF THE DAY)

A child stands in front of weapons used by members of the Fuerza Civil (Civil Force) police unit during a an exhibition at Fundidora park in Monterrey April 20, 2014. The exhibition aimed to show visitors the capabilities of the Fuerza Civil, a tactical team of the police unit trained by the army, created by the Nuevo Leon government in 2011 to curb down corruption and infiltration by drug gangs in the police corps, local media reported. REUTERS/Daniel Becerril (MEXICO - Tags: SOCIETY CRIME LAW)

An armed man stands next to a barricade in front of the police headquarters in Slaviansk April 13, 2014. Ukraine's Interior Minister on Sunday told residents in the eastern city of Slaviansk to stay indoors, in anticipation of clashes between pro-Russian militants who have seized official buildings and Ukrainian security forces. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS MILITARY CIVIL UNREST TPX IMAGES OF THE DAY)

Boys play soccer as a policeman patrols one day after the occupation of the Mare slums complex in Rio de Janeiro, March 31, 2014. The federal troops and police occupied the Mare slums complex on Sunday to help quell a surge in violent crime following attacks by drug traffickers on police posts in three slums on the north side of the city, government officials said. Less than three months before Rio welcomes tens of thousands of foreign soccer fans for the World Cup, the attacks cast new doubts on government efforts to expel gangs from slums using a strong police presence. The city will host the Olympics in 2016. REUTERS/Ricardo Moraes (BRAZIL - Tags: CRIME LAW SPORT SOCCER WORLD CUP SOCIETY)

Residents react as policemen take position during an operation in the Mare slums complex in Rio de Janeiro March 26, 2014. Brazil will deploy federal troops to Rio de Janeiro to help quell a surge in violent crime following attacks by drug traffickers on police posts in three slums on the north side of the city, government officials said on Friday.
Less than three months before Rio welcomes tens of thousands of foreign soccer fans for the World Cup, the attacks cast new doubts on government efforts to expel gangs from slums using a strong police presence. The city will host the Olympics in 2016. REUTERS/Ricardo Moraes (BRAZIL - Tags: CRIME LAW TPX IMAGES OF THE DAY)

Residents observe a police officer take up position during an operation at the Mare slums complex in Rio de Janeiro March 25, 2014. Brazil will deploy federal troops to Rio de Janeiro to help quell a surge in violent crime following attacks by drug traffickers on police posts in three slums on the north side of the city, government officials said on Friday. Less than three months before Rio welcomes tens of thousands of foreign soccer fans for the World Cup, the attacks cast new doubts on government efforts to expel gangs from slums using a strong police presence. The city will host the Olympics in 2016. REUTERS/Ricardo Moraes (BRAZIL - Tags: CRIME LAW)

An Afghan security personnel keeps watch near the Serena hotel, during an attack in Kabul March 20, 2014. Taliban gunmen attacked the luxury Serena hotel on Thursday in the centre of the Afghan capital Kabul, police said, and four of the assailants were killed in a shootout with Afghan security forces. REUTERS/Ahmad Masood (AFGHANISTAN - Tags: CRIME LAW CIVIL UNREST CONFLICT)

A pro-Russian man (not seen) holds a Russian flag behind an armed servicemen on top of a Russian army vehicle outside a Ukrainian border guard post in the Crimean town of Balaclava March 1, 2014. Ukraine accused Russia on Saturday of sending thousands of extra troops to Crimea and placed its military in the area on high alert as the Black Sea peninsula appeared to slip beyond Kiev's control. REUTERS/Baz Ratner (UKRAINE - Tags: MILITARY POLITICS CIVIL UNREST)

SPLA soldiers sit at the back of a pick-up truck in Malakal, Upper Nile state January 12, 2014. Malakal, the main town in Upper Nile, was held by rebels for a few days in December. REUTERS/Andreea Campeanu (SOUTH SUDAN - Tags: CIVIL UNREST POLITICS CONFLICT)

A boy plays with an unloaded gun while he attends national Children's Day at the Army base in central Bangkok January 11, 2014. Thai army chief Prayuth Chan-ocha says security was a concern due to the amount of protesters expected in the capital for a planned "shutdown" and urges all sides not to clash. REUTERS/Athit Perawongmetha (THAILAND - Tags: MILITARY POLITICS)

A Free Syrian Army fighter fires towards the village of Aziza, which is under the control of forces loyal to Syria's President Bashar al-Assad, in the southern countryside of Aleppo October 5, 2013. REUTERS/Hamid Khatib (SYRIA - Tags: CONFLICT CIVIL UNREST)

Free Syrian army fighters fire their weapons in Suleiman Al-Halabi neighbourhood of Aleppo, September 14, 2013. REUTERS/Hamid Khatib (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)

A Free Syrian Army fighter shoots his weapon in the old city of Aleppo, September 1, 2013. REUTERS/Molhem Barakat (SYRIA - Tags: POLITICS CONFLICT)

A Free Syrian Army fighter reads inside a room in al-Suwayqa neighbourhood of Aleppo August 16, 2013. REUTERS/Molhem Barakat (SYRIA - Tags: CONFLICT)

Steve Davis, brother of alleged James "Whitey" Bulger victim Debra Davis, walks away from the federal courthouse with an unidentified woman in Boston, Massachusetts August 8, 2013. Jurors weighing the fate of Boston mobster James "Whitey" Bulger did not reach a verdict on Thursday after asking to see a German-made World War Two era submachine gun that prosecutors said was one of many used by Bulger's Winter Hill crime gang. REUTERS/Brian Snyder (UNITED STATES - Tags: CRIME LAW)

Steve Davis, brother of alleged James "Whitey" Bulger victim Debra Davis, stands outside the federal courthouse in Boston, Massachusetts August 8, 2013. Jurors weighing the fate of Boston mobster Bulger did not reach a verdict on Thursday after asking to see a German-made World War Two era submachine gun that prosecutors said was one of many used by Bulger's Winter Hill crime gang. REUTERS/Brian Snyder (UNITED STATES - Tags: CRIME LAW)

Tom Donahue, son of alleged James "Whitey" Bulger victim Michael Donahue, talks to reporters outside the federal courthouse in Boston, Massachusetts August 8, 2013. Jurors weighing the fate of Boston mobster James "Whitey" Bulger did not reach a verdict on Thursday after asking to see a German-made World War Two era submachine gun that prosecutors said was one of many used by Bulger's Winter Hill crime gang. REUTERS/Brian Snyder (UNITED STATES - Tags: CRIME LAW)