thunderbird pilots. father's. has been to. and the hanoi hilton. they would be tried to tell you it was built in the late 1800's. the country was basically a colony. withheld vietnamese captives in the pow said you could hear the screams in of the agony of 70 years. they realize for their own experience the prisoners that could communicate to to keep in separate cells when they could. they realized this they needed a way to communicate so they cannot talk freely with one another. so they came up with the tax code. this was the lifeblood of the pow and vietnam's. fortunately they remembered this code from a coffee break conversation so bob shoemaker and others were together in the spring of 1965. they came up with us midi harris tap code who remembered from survival school. 25 letters of the alphabet we use the letter c for the letter k25 letters. if i would said ross terry of message but said would send the letter be. it is one of because it is in the first row and twice in the second column. my generation's sometimes thinks we had the abbreviated

air force thunderbird pilot. they were fathers. they were husbands. they were sons, and they all ended up in the prison. north in these would take them up to hanoi and at some of you did was here today can tell you, it wasn't a very pleasant journey. but it all came together at hoa lo president was built in the late 1800s by the french the coverage of it in north vietnam and generally for decades. and the country was basically a colony. so for decades this prison health vietnamese captive. the pows said when you came into the prison you could almost hear the screams and the agony of 70 years of prisoners. so very quickly these guys realize north vietnamese are going to try to isolate them. they learn from the own experience in this prison that prisoners could communicate with prisoners that were hard to deal with. so they tried to separate the prisoners and keep them in separate cells when they could. the pows realize this and they knew they needed a way to communicate when they weren't going to go to the freely and talk with another. they came up wit

. >> the thunderbird did ok. they put seats in the back and it sold like crazy.d diesel pickup truck in america. >> that would be awesome, but jalopy of you. i think ray and i have it. a diesel with a stick shift. and if at all possible, co-brand it a miata. withy as cash, i sat down -- star for a sneak peak deadliest catch, i sat down with a star for a sneak peak on just how deadly his job is. ♪ >> this is "street smart" and i matt miller import trish regan who is on assignment. it is time for our segment on pop culture. king crab fishermen have one of the most dangerous jobs around and for the past nine seasons of "deadliest catch" we have seen just how. it has brought in record ratings and multiple emmys for the discovery channel. i sat down with one of the bravest men around, keith colbert, and asked him just how long he is putting his life on the line. it has been longer, by the way, then 10 seasons. >> i started in 1985, so i've been up there almost 30 years now. >> and survival is not easy. people do not take this title seriously. first of all, being a fis