Extreme temperatures and getting lost are the two greatest dangers facing thousands of people who each year try to cross into the US illegally over its southern border on long treks led - part of the way, at least - by people-traffickers known as "coyotes."
It is the first step in a process that promises to combine three of Trump’s most successful ventures: beauty pageants, reality TV competitions and xenophobia. Proposals include hi-tech ‘virtual wall’ and 1,600km barrier of shipping containers.
President Donald Trump's immigration policy has caused people smugglers known as "coyotes" to raise their rates to bring migrants into the US now that the routes are longer and have become more dangerous because of the increased border vigilance, undocumented immigrants say.
For undocumented women make the perilous journey to the US, sexual violence is one among many threats.
Document seen by Reuters reveals US government lacks funds to fulfill Trump’s campaign promise