they own organic farms and one of the most unique restaurants in logalas, mexico. >> it's called the rock. because your uncle built this into the side of this mountain. >> that's me. >> as a child, alicia remembers freely crossing the border into mexico. >> we come down in our bathing suits, by the popsicle, get the ice cream and go back. >> but with immigration control tightening on the u.s. side and the fear of cartel violence, la rocca has struggled to keep its doors open. >> somebody came in and hit the light switch and there was nobody. there was nobody in town, there was nobody on the street. >> difficult problems to solve, throwing up trade barriers, putting up a wall. there's such harsh approaches to the problem and once again, you're treating a symptom and not going after the root cause of the problem.