Why Are So Many Migrant Kids Trekking Alone To The U.S. Border?

Watch Video"It took me one month to travel from Honduras to the U.S. Most of that time I spend in Mexico on top of a cargo train, begging for food."

When he was only 15, Elvis Garcia Callejas traveled 2,000 miles to the U.S. to flee poverty and gang violence in Honduras. 

He knew the trip north would be extremely dangerous...