looking for the american dream. >> so right now we are in southern mexico, literally 2,00n san diego, or 1,000 miles to mcallen, texas, someone walked, they will hitchhike when they can, catching a ride in a back of a pickup truck, or they will do this, pay about $1.50 or $2 a person and getting a taxi van and hopscotch town to town, sleeping each night, walking a little bit, all the way through mexico to the u.s. border. there is a train they can catch not far from here, but it is dangerous. so the further we go north, the caravan will likely splinter, some will go towards the east, but the majority will go west to tijuana, and that's where someone cross illegally, others like this family will ask for asylum. are you worried at all about not being allowed in? >> yes, a lot, because it is a long way with the children for nothing. >> tomorrow a town called