how they die it's aeeling of not having an end. >> reporter: for "worlocus," i'm john larson, tijuana, mexico. > for more about all of this we a joined tonight byndres martinez. he is a nior fellow at the new america foundation in shington, d.c. thanks f being with us. >> thank you for hing me. we've heard a lot tonight about w official corruptions impeding therug war in mexico and m wondering that why the mexican governme deployed tens of ousands of troops to fight drug cartels, and thens it working? >> it's one of the reans why there was a perceive depl the military, yes. the fact that a lot local police fces had been compromised and infiltrated which is recurring problem in mexico. i wouldn'tay it's only from corruption though. i think it's actlly a matter -- there was no other force t throw at the proem. mexico lacks a song muscular ti police force. so paly that the government was being outgunn. >> is it worki? >> there's a stalemate in place. it worked initially. a sort of shock-and-e element to having the army patrol the streets. buover time the cartels have adjusted to thnew re

as "worldfocus" special correspondent john larson first reported last march, some people believe the authorities are behind some of these abductions as well. >> this is going to be one of the busiest streets in tijuana and i was with my son. we had to come into my -- to my brother-in-law's office. >> reporter: christina remembers the day 12 years ago when armed men blocked her car. >> one of them came to my window. the other one came to alex's window. and with the back of the rifle hitting my car and shouting that we had to get out of the car. all this time i was shouting, "who are you, what do you want?" letting go. "why are you taking him?" >> reporter: they dragged her son alex into a van and christina never saw her game. mexico drug cartels have kidnapped for years. but these stories are different. mexicans call them "the disappeared." almost 1,500 people where there was no ransom, no body, no explanation. listen to their stories and you'll get a sense ofjust how deep mexico's problems are. >> translator: it was about 4:30 in the morning when i got up and saw a bunch of stuff app