and for that... so i spent time with enrique-- a couple of weeks-- in nuevo laredo the in northern mexico. he told me everything he had been through, and i went to honduras where he started, and i did the journey step-by-step, just as he had done it a few weeks before. so i ended up traveling 1,600 miles, and about half of that on top of seven freight trains up the length of mexico. >> hinojosa: now, you are... you're not a small woman. >> no. >> hinojosa: ...so the notion of you riding on top of a train... i mean, what were you... were you holding onto something? and what happens like, when you have to go to the bathroom or you want to eat? i mean, trains don't stop every two hours, right? so... >> no, often they don't stop for 16 or 18 hours... >> hinojosa: are you kidding? >> ...and you learn how long you can go without going to the restroom, but... >> hinojosa: so you actually would be on a train for 16 or 18 hours? >> with no water, no food. in the south, the trains are scorching hot. it's 105 degrees. you can't touch the train, it's so hot. >> hinojosa: so what were you doing? >> we