CNN CNN Special Report March 22, 2015 03:02:00
Smugglers from crossing from mexico into the u.s. >> right there, right there. one guy's gotten out. one guy's gotten out into that house. >> reporter: they are also trying to stop the violence of a full-scale drug war from spilling north. >> are there parts of this border that you would be basically lawless or run by the cartels? >> absolutely. ♪ >> reporter: smack in the middle of this 21st century version of the wild west, two young americans, david hartley and tiffany young, just teenagers when they fell in love. >> we started dating in '98. the summer of '98, and dated for quite a while...