there is a war in reynosa. two drug cartels battling for turf.etas, a rogue band of former military, are trying to push out the gulf cartel which has smuggled drugs across the rio grande for decades. killings are constant. tiffany and david hartley learned firsthand. mexican police were not to be trusted. for instance, he was coming home from the bank after cashing our rent check and police pulled him over, followed him from the bank. pulled him over. had him step out and punched him in the face and stole his money. >> reporter: david, she says, saw someone get shot on the street. did you sense it was getting more dangerous? >> you could. yeah. you could sense it. you'd hear more about it. >> reporter: what did they look like? describe how you would pick out a cartel member? >> their trucks at that time had their name. >> the zdg, or a "z" on it for the zetas. they had actually marked their vehicles with their name and who they were. >> reporter: david convinced his company to allow him at least to live on the american side of the border in mcall

what look outside reynosa mateo bridge and the sun rainshowers and some very slow traffic san jose my in. mt. hood was left off the list. so was the oregon coast, the columbia river gorge and the painted hills. smith rock and the wallowas are all missing. whoever named the seven wonders never set foot in oregon because even crater lake was left off their list. so we see your wonders world and raise you seven of our own. the seven wonders of oregon. see one, or better yet see them all. (cluing isesevyone wantso bethe cadby bunny causonlye brings delious dburcreme eggs. ile hersay keep trng bunnknoweaster tterhan cadbury. ♪ ♪ rsh's read brinthe licis tae of hshe's ocole anying evythi. th hshe's read the ssibitieare licis. you can find a new frontier. there's nothing stopping you and a lot helping you. technology that's with you always. this is our promise. it's never been better to wander because wherever you go, you'll find us doing everything we can, so you can. >> darya: we have copies con 4 morning news shows the poppies its national pop bidet actually edelman and calling page bookl