scott briggs and emergency response leader t.j. wilde are stationed in the woods. >> we're probably three-quarters of a mile away from the target location now. they are probably within 200 yards or less. >> the surveillance team is trying to confirm the suspects are on site without blowing cover. otherwise, dylan carter and the other targets could escape, or worse, start a shootout. >> after two hours, the lead sniper reports in. >> we got intelligence back. now we are going to wait and see, and see what information they can get as far as if one of our wanted suspects is there. >> the snipers need to confirm one suspect home before storming the property. >> there's -- most of our surveillance people are in position where they can get around the house and contain any suspects that may leave when this goes down. >> scott has been tracking carter for nine months, but these are the longest hours of his investigation. >> somebody's outside. >> 10-4. >> movement at the house and in the shed behind there. >> yes, thank you. >> something's fixing to happen for us here. >>

. >> reporter: it is the brain child of don briggs. the idea came to him 13 years ago, while driving the wide open flat lands of iowa. >> a lot of the silos aren't being used anymore and these were used to need cal the, and now they have a are silo and no use for it. we are putting a pretty good use for it we think. >> the frigid midwest temperatures are a perfect opportunity to add slippery wals, a couple of climbing axes and crampons and taking climbing to the extreme. >> it takes request thousands of gallons of water. sprayed on the surface. 80 feet of perfect surface. >> set i.t., test it, keep my arms straight. >> for years briggs has been teaching students the proper techniques for ice-climbing. it's the perfect training ground for budding mountaineers who might want to progress to rock falls. >> they say nothing compares to the silo. this is going to prepare you for any difficult climb that there is. >> on the scaling system known as the waterfall ice grading the silo has a destination of wy 5, a 7 being the most challenging. it

. >> reporter: briggs has been teaching students the proper techniques for ice climbing.the perfect training ground for budding mountaineers who might want to graduate to ice covered cliffs. >> this last week we had a couple of people that went into canada, and said nothing compares to the silo. this is going to prepare you for any difficult climbing there is. >> reporter: the silo has a designation of wi5, a 7 being the most challenging. it is not easy. evenmor world class climbers. >> this is some of the most difficult ice climbing to be found in the united states because of the verticalness of it. >> it is really tough. it is just consistently tough. >> reporter: so tough, only 1 in 12 make it to the top on the first try. >> to actually see yourself through all the way to the top is like oh, my gosh, i can do it. >> reporter: for these climbers achieving their personal best means scaling the heights right in their backyard. >>> just ahead, life as a migrant worker through the eyes of an 8-year-old. >>> plus why colorado is seeing green and lots of it. ♪ * >>> a warming

had signed a number of other players also reassigning some of their own guys walk guys like lance briggs are back there'll be lots of new faces when they get together especially up front. the blackhawks have a stanley cup final rematch tonight in boston. white sox and cubs play each other today to get ready to break camp in arizona. it's a 2:00 p.m. telecast here on wgn. n.c.a.a. resumes tonight. the first four games in the sweet 16. >>the n-f-l will experiment on making extra points harder to get. right now the point after a touchdown is almost automatic since only a few are missed every year. so now the league will move those plays back by 18 yards, during the first two weeks of the preseason. the ball will be hiked from the 20 yard line, which makes the extra point attempt just like a 37-yard field goal. goal posts will also be five feet taller to help officials determine when kicks are good. making it tougher on them ... one of golf's most historic clubs may soon open its doors to women. saint andrews, in scotland, has been around since 1764... and in all that time, it has been male

nicola briggs boards a crowded subway train. >> i was headed downtown to meet a friend to go to dinneratown. so i was dressed up and feeling very relaxed and comfortable. >> nicola finds a spot near the door. >> i remember i was holding the pole, and i remember another arm outstretched across. it was obviously a man's arm. >> what nicola doesn't know is the man standing beside her is a pervert. >> you know, i don't like -- why does this person keep pressing up against me and i realize you have all this [ bleep ] space here and i see your [ bleep ] is out. that's it! >> a passenger records the confrontation on a cell phone. >> when i turned around and i saw this person, his erect penis was out of his pants and he was wearing a condom and i realized what he had been doing. he had been trying to get off on me. >> nicola's small stature might make her look like an easy targets, but what the man doesn't know, she's an expert martial artist. fully prepared to defend herself. >> i said, i don't want to touch you, but if i have to, i will. >> nicola holds her ground. >> i know what i saw. >> a

joining us now is dave briggs, the host of "sports dash." and nbc sports network.becky blames me for picking wichita state. >> my knowledge of basketball comes from what i hear from you. >> the team was 35-0. >> can i call you next year. >> call me next year. wichita state, great run. kentucky is finally playing the way they should have all year. >> they are. they peaked late like they did last year. louisville seemed to do the thing. they were man handling kentucky in the first half. they could have been up ten at the half. it looked like they were going to surprise the world. >> florida, michigan state, arizona, your favorites, lou itville, the four favorites are still alive regardless of bec becky's unfortunate bracket. >> where are you in the standings? >> i have 41 wins. you have 43. >> that's really funny. i know nothing. >> it's not over yet. >> dayton, do you think they have a shot? that's a lot of fun. >> i can't wait for iowa state against shahbaz. >> they will hang around they they can meet florida. >> iowa state, they lost their best player. >> to me, s

and i've been mostly briggs said the next day without saying to national. sarah palin caused quite a stir at the recent twenty fourteen conservative political action conference and her now famous infamous quote about how to deal with russia is flying all over the internet to both cheers and jeers she said the only thing that stops a bad guy with a nuke is a good guy with a nuke to be fair people are taking this quote a bit out of context to saying that in terms of her fears that obama is disarming the country's nuclear arsenal and well from what we've seen having a big batch of dukes sure keeps the interventions out of your country but her belief that obama is disarming the u.s. is madness there's absolutely no evidence that obama has even put a dent into the military industrial complex also using the term bad guys and saying there are bad countries with bad people in them who just want to do bad things this is the level of intellectual discourse of a kindergarten class russians just bad her childlike view of the world also applies to violence because she t