Each year hundreds of thousands of optimistic South and Central Americans travel north to see whether things might be less crappy for them in the United States.

The problem is they have to cross Mexico to get there. And Mexico is riddled with inhospitable local authorities and migrants who are as eager as they are possessive of the American passage.

Both groups treat Southern transients the same way US authorities treat illegal Mexican aliens: like human refuse.

In broad daylight you can witness legions prancing over the increasingly defined line that divides one country from another.

immigrants have two options northward: riding a bus or hopping a train. Either way, Mexicans with machine guns and shitty attitudes await them.