Lying in the jungle with a gun pointed at him, Marcel Maldonado remembered his mother's warning about the dangers of migrating overland to the United States -- and wondered if he'd get out alive.
Despite having a prosthetic leg, the 30-year-old Venezuelan had made it with his family as far as the notorious Darien Gap between Colombia and Panama. But when he got held up by criminals he was reminded why this is one of the world's most dangerous migration routes.
