Policemen search two men for drugs and weapons during a patrol at the gang-infested 14 de Marzo neighbourhood in Tegucigalpa May 23, 2014. Migration by unaccompanied children from countries in the 'northern triangle' of Central America, comprising Guatemala, El Salvador and Honduras, is gaining attention as a humanitarian crisis in the United States, while U.S. authorities are trying to discourage the inflow of illegal immigrants who will almost certainly be deported. REUTERS/Jorge Cabrera 

Children walk past an abandoned house at the gang-infested 14 de Marzo neighbourhood in Tegucigalpa May 23, 2014. Since October last year, 52,000 unaccompanied children have arrived on the U.S. border with Mexico, according to the Obama administration, and most are fleeing gang and drug violence in Guatemala, Honduras and El Salvador. REUTERS/Jorge Cabrera 

People hoping to reach the U.S. ride atop the wagon of a freight train, known as La Bestia (The Beast) in Ixtepec, in the Mexican state of Oaxaca June 18, 2014. REUTERS/Jose de Jesus Cortes 

Unaccompanied minors and a family stand next to Honduran border policemen after being detained for the lack of identity documents at a porous border known as La Montanita in the small village of Suyapa, on the border of Honduras with Guatemala, June 20, 2014. REUTERS/Jorge Cabrera 

Unaccompanied minors and a family sit in the bed of a police truck after being detained for the lack of identity documents at a porous border known as La Montanita in the small village of Suyapa, on the border of Honduras with Guatemala June 20, 2014. REUTERS/Jorge Cabrera 

Food and kitchen items are scattered on the kitchen floor of a house seized by authorities in Ciudad Juarez May 23, 2014. The house was seized and sealed after it had been identified as one of a series of safe houses for illegal immigrants used by a group of coyotes, according to police reports. Police found the house after arresting a coyote who was with 12-year-old Ecuadorean girl Nohemi Alvarez Quillay, on a street in Ciudad Juarez. She was travelling with the coyote after her parents, who live in the U.S., paid a group of coyotes to bring her over. She was later sent to a government-run shelter for her protection where she committed suicide shortly after. REUTERS/Jose Luis Gonzalez 

An abandoned bicycle for children, a baby swing and rubbish are seen in the back patio of a house seized by authorities in Ciudad Juarez May 23, 2014. Tens of thousands of children unaccompanied by parents or relatives are flooding across the southern U.S. border illegally, forcing the Obama administration and Congress to grapple with both a humanitarian crisis and a budget dilemma. REUTERS/Jose Luis Gonzalez 

A woman and her daughter cover themselves to avoid being photographed inside a bus, while arriving at the Honduran Center for Returned Migrants after being deported from Mexico, in San Pedro Sula, northern Honduras June 20, 2014. REUTERS/Jorge Cabrera 

Youths watch television at the shelter for underage immigrants and repatriated minors "Mexico, my home" in Ciudad Juarez May 27, 2014. The shelter receives underage Mexicans and Central Americans who have been prevented from crossing the border or sent back after entering the U.S. illegally, forcing the Obama administration and Congress to grapple with both a humanitarian crisis and a budget dilemma REUTERS/Jose Luis Gonzalez 

Alexandra from Guatemala shows a drawing she made at the shelter for underage immigrants and repatriated minors "Mexico, my home" in Ciudad Juarez May 27, 2014. An estimated 60,000 such children will pour into the United States this year, according to the administration, up from about 6,000 in 2011. REUTERS/Jose Luis Gonzalez 

Boys sit together while watching television at the shelter for underage immigrants and repatriated minors "Mexico, my home" in Ciudad Juarez May 27, 2014. REUTERS/Jose Luis Gonzalez 

A passenger hands her document to a Honduran border policeman in a bus heading to Guatemala, at a border checkpoint in Corinto, northern Honduras June 20, 2014. REUTERS/Jorge Cabrera 

A worker leads minors who were deported from Mexico at the Honduran Center for Returned Migrants, in San Pedro Sula, northern Honduras June 20, 2014. REUTERS/Jorge Cabrera 

Women and their children wait in line to register at the Honduran Center for Returned Migrants after being deported from Mexico, in San Pedro Sula, northern Honduras June 20, 2014. REUTERS/Jorge Cabrera 

Unaccompanied minors watch TV at the Honduran Center for Returned Migrants after being deported from Mexico, in San Pedro Sula, northern Honduras June 20, 2014. REUTERS/Jorge Cabrera 

Women and their children wait in line to register at the Honduran Center for Returned Migrants after being deported from Mexico, in San Pedro Sula, northern Honduras June 20, 2014. REUTERS/Jorge Cabrera 

A sleeping detainee is seen through the window of holding cell at a U.S. Customs and Border Protection processing facility in Brownsville, Texas June 18, 2014. CPB provided media tours of two locations in Brownsville and Nogales, Arizona that have been central to processing the more than 47,000 unaccompanied children who have entered the country illegally since Oct. 1. REUTERS/Eric Gay/Pool 

U.S. Customs and Border Protection agents work at a processing facility in Brownsville, Texas June 18, 2014. REUTERS/Eric Gay/Pool 

Detainees are shown in their holding cells where hundreds of mostly Central American immigrant children are being processed and held at the U.S. Customs and Border Protection (CBP) Nogales Placement Center in Nogales, Arizona, June 18, 2014. Two locations in Brownsville, Texas, and Nogales have been central to processing the more than 47,000 unaccompanied children who have entered the country illegally since October 1, 2013. REUTERS/Ross D. Franklin/Pool 

Detainees sleep and watch television in a holding cell where hundreds of mostly Central American immigrant children are being processed and held at the U.S. Customs and Border Protection (CBP) Nogales Placement Center in Nogales, Arizona, June 18, 2014. REUTERS/Ross D. Franklin/Pool 

Two young girls watch a World Cup soccer match on a television from their holding area where hundreds of mostly Central American immigrant children are being processed and held at the U.S. Customs and Border Protection Nogales Placement Center in Nogales, Arizona June 18, 2014. REUTERS/Ross D. Franklin/Pool 

Detainees sleep in a holding cell at a U.S. Customs and Border Protection processing facility, in Brownsville, Texas June 18, 2014. REUTERS/Eric Gay/Pool 

Detainees sleep in a holding cell at a U.S. Customs and Border Protection processing facility in Brownsville, Texas June 18, 2014. REUTERS/Eric Gay/Pool 

Detainees play as other sleep in a holding cell at a U.S. Customs and Border Protection processing facility in Brownsville, Texas June 18, 2014. REUTERS/Eric Gay/Poo 

A few boys try to make calls as they are joined by hundreds of mostly Central American immigrant children that are being processed and held at the U.S. Customs and Border Protection (CBP) Nogales Placement Center in Nogales, Arizona, June 18, 2014. REUTERS/Ross D. Franklin/Pool 

USA-IMMIGRATION/CHILDREN - Charts juvenile apprehensions reported by the US Border Patrol. (SIN01)