myself and my associate producer melissa wood creating a documentary that we are still in productionr and we released a two-minute video online and yelp has fired back with all of that. this billion-dollar company versus this grassroots organization. i think it does clearly show that they are concerned about what will be coming out in the documentary. >> i think that's an unfair statement. this has been going on for weeks. we released one two-sentence statement and let it go. when it's to the point where the same misleading activity is now trying to fund raise to further this conversation, we have to step in and really make sure facts and gravity are at the center of this which is what's the right thing to do for users. >> one last question. are you going to sue her? >> i can't speak to legal proceedings, but it is absolutely not on the table right now. >> thanks for coming on. it was a great discussion. and very civilized at that so we appreciate that. important to note in this, they said that billion dollar bullying is a buying opportunity. >> could be. >> could be. >> yelp is a hu

melissa mollet takes us on a trip down hunter mill road. >> initially hunter mill road was an indians path. >> reporter: a 7.2-mile indian path a path you can still find. >> if you go in the woodsere to look you can sigh the traces. they're there, and in some cases they're pristine. >> reporter: historic jim lewis knows anything you would ever want to about fair fox county. in 1831 he bought the mill at auction. for driving down the mill room today, is now a trip. >> i can look left or right and can envision what was going on 200 years ago, and it absolutely takes your mind off the rush hour if you will. >> reporter: hunter mill road might be busy today, but believe it or not, it was busy during the civil war too. that's because this was the main route north from the fair fox courthouse. >> if you were 'tis courthouse and you wanted to go north to the great battles. you typically would travel up hunter mill road. there have been a number of well-known military fib to use the road. jeb stewart. >> reporter: the courthouse serve as a supply outpost that the union eventually took over. the road had several names for several years. >> there's a 1937 platt that doesn't say hunter mi

melissa: how do you make sure the people don't get hurt? it looks dangerous and terrifying me? >> we've been doing it 15 years, knock woodr had one single accident of the we do what we call top rope climbing where the rope goes from top of the silo to an anchor and goes back down to the bee layer, and it keeps the rope tight as climber assends or climbs up the wall. melissa: how difficult is this compared to other types of climbing? you mentioned you don't have any mountains to do this. is it harder? i obviously haven't done it so? >> actually very difficult ice to climb because vertical all the way and there's no no place to rest. just a straight vertical climb. and i have climbed a lot of places in the world an this is one of the hardest places i have had to climb. not the most technical nor the most difficult in the world but it is close to it. melissa: are there a lot of other people doing the same kind of business and what does it cost? >> well, we, i've been encouraging people all over the midwest to try ice up their silos. i had one person in north dakota, iced up a tree. two people in wisconsin are doing a silo.

wood from the heritage foundation of the thanks for joining us. let me start with you, colonel cowan. how big after blow would that be? >> a real big one, melissa, no question about it. there are when those plans were not carried out when they withdrew there. depending how much they got their hands on, perhaps some files were destroyed, if the houthi rebels identify people through the documents that undermines any effort we had going in the counterterrorism realm, running agent operations against al qaeda. melissa: dakota, this is one of the things you specialized in your time in the marine corps, evacuation of american citizens from countries that are in crisis. was this handled badly? >> well, i think there is some doubt as to which files we're talking about. so not only do the americans hold files on intelligence operations but the government that you work with. so some reports are indicating that these were yemen government files that the houthi rebels have captured but in either case as your other guest articulated, it reveals networks being worked and people in yemen that remain there although americans that have left are certainly at ris

melissa mollet takes us down a trip down hunter mill road. >> originally hunter mill road was an indian path. >> reporter: a 7.2 mile indian path, a path you can still find. >> if you go in the woods and know where to look you can see the traces. they're there. they're in some cases pristine. >> reporter: historian jim lewis knows anything you'd ever want to about fairfax county and hunter mill road the mill named for george washington hunter senior. in 1831 he bought the mill at auction. for lewis, driving down to today's hunter mill road is a trip. >> i can look left and right and envision what was going on 200 years ago. it takes your mind off the rush hour if you will. >> reporter: it might be busy today, believe it or not, it was busy during the civil war, too. that's because this was the main route north from the fairfax courthouse. >> if you were at the courthouse and wanted to go north way they did, you typically would travel up hunter mill road. there have been a number of very well-known military figures utilize the road. >> reporter: the courthouse served as a supply outpost that the union eventually took over. the road had several names for several years. >> there's a

melissa. >> at this point we have a lot of road closures around the situation. you can see the police presence from chopper 4. here is kind of the list here. arlington boulevard, prosperity avenue and wood burn all shut down in the sections right around the hospital. back in a couple of minutes with more. >> thank you. >>> we have two crew on the scene in falls church. take a live look here now. police and investigators searching for this escaped prisoner. they say he is armed and dangerous wearing a hospital gown. fairfax county police telling us they belief he was a patient in the custody of a private security guard. he escaped with that guard's gun, according to police. now there is an all-out manhunt. you can see this search area right now as investigationers try to locate the man. the people who live in the neighborhood have been receiving reverse 9-1-1 calls to be on the lookout for the person who police consider armed and dangerous. we'll have more information and we'll bring you a live update at of 30. we're posting, of course everything we know on the nbc washington app. >>> an update on the story we told you about from california that doctor who treated this firefighter who fe