1.   But, by Mexican law, the agents cannot forcibly stop immigrants from trying illegal crossings.

2.   Investigators at the Center for Immigration Research say stepped-up border enforcement is leading an increasing number of people to try crossings in remote and dangerous locations.

3.   Similar spots, with testimonials from people who have tried the crossing before, also air on Mexican TV.

4.   Worried about missing his flight, and feeling he had been unfairly treated, Shearar tried another crossing at nearby Lynden, Wash.

5.   Would he try another crossing?

6.   Ousland tried the crossing last year.