Okay, so this is a very, very long shot, but:
I work for the documentary public radio and cable TV program This American Life. We are interviewing a people named John Smith for an upcoming episode of the TV program we do for Showtime. I noticed a US Veteran named John Smith in an article in the New York Times on February 2, 2008 (The article's title was "Border Traffic Moves Well in First Days of New Rule for Americans' Re-entry"). It says that Mr. Smith is 52, lives in Ciudad Juarez but goes into El Paso weekly to get benefits. Does anyone have any suggestions on how I could begin to track Mr. Smith down?