watch the tracers, keep low. you may be there all night.you may be there for the rest of your life. you watch the alleys and the windows for anyone you don't know. you don't know anyone. think through the rules of engagement, positive identification of a threat is required before you can fire, reasonable certainty. you're in the middle of an urban sprawl, your friend's shattered vehicle is upside down by the road ahead, extinguishers are all expanded, and marines are throwing sand on the wreckage. the tires cannot be smothered. you can smell the smoke, and all the while it isn't your house that you have invaded. the family beneath you is just waiting for you to leaf. someone is still shooting. you're not sure in the night vision equipment if you can see something moving. it can't be positively identified. you hold your fire, you hold your position. that can be your profession. you don't want to let anyone down. a bullet had gone out into other people's lives. we gathered some who lived there to fill in the holes left by the bombs left for u

. >> there are tracers in the gun powder and the pellets themselves and ball bearings can be traced to a manufacturer and the device itself it is the best evidence that we have. >> in addition to still images and video. a source tells fox news that there is a significant social media foot print. more than 30,000 social media messages were connected from 25 hours before to 24 hours after the explosion. messages that seemed out of place and quoded and tweets abou two boston hotels were investigated further. >> an unconventional ware fare. commercial media will communicate. >> in the first public comments. the attorney general offered few details. >> i want to assure you and the is thes of boston and all of america we are working to determine who is responsible for this incident. >> fox news is developing new information that federal investigators are asking foreign governments to look at travel rorteds . >> we are going to see a lot of the radio and images. >> bret: what struck me suspect two, and that according to the f.b.i. is the guy in the white hat, and he's the person they say put,

. >> in a prior life, frank ahern of new york city made a living as a skift tracer a private investigator who investigate people who skipped town and don't want to be found. he would use the proverbial paper trail which back in the day was literally made of paper, phone bills, credit cards, receipts and so on. he agreed to come to my home out of side atlanta to follow me around to show how today's paperless trail makes it almost impossible to hide. >> just woke up had a cup of coffee pull out the lap top when does the data begin? >> the minutite you are on. you are letting the ip company know you are there. the ip knows about us. google knows about us. yahoo knows about us. the e-mail company knows about us. >> i am going to send an e-mail to the lawn service company. >> ahern says he never had this kind of detailed information back in his skip tracing days. >> phone record would say frank called ted at whatever hour. e-mail, frank e-mailed ted this is what he wrote. >> according to the chip maker intel we send 204 e-mails every minute each one generating raw information about ourself tha

. >> there are tracers in the gunpowder, the pellets, the ball bearings can be traced to the manufacture and the device itself, the explosive device itself is the best evidence that we have. >> in addition to still images and video fox news is told there is the significance of social media footprint providing new these. 30,000 messages were collected within 1 mile radius of the finish line 24 hours before through a 24 hours after. they seemed out of place or coded including about to boston hotels or analyze further. the former navy seal and joint terrorism task force. >> unconventional warfare what you start to see more and more is the use of social media to communicate and spread messages. >> in his first public comment the attorney general offered few details. >> i will assure you the citizens of boston and americans we're working tirelessly to find who is responsible. >> while releasing images of the suspects asking for the public's health -- help administration officials testified that case remains wide open and. fox news. lou: authorities in texas at this moment are called in this c

they're very, very good at tracers, fingerprints, footprints on these devices to find out where it washo purchased the materials. so from there, they would execute search warrants and hopefully find the terrorists. >> and chairman, let me just interrupt here, we do have some breaking news. >> there has been an arrest, so you probably aren't aware of in mississippi, there's been an arrest in the ricin case according to two federal law enforcement officials here at cnn. they the arrest was in the tupelo, mississippi area.ell us this? >> yeah, i knew they had a suspect in this case, and i'm glad to see they have been able to apprehend and arrest this individual. and i would again make the assertion that it really has no relation to t boston bombings, it's very reminisce end of the anthrax attacks after 9/11. it's very dangerous when you have people sending poison to federal officers. the security is very high right now to protect the members of congress. we're very concerned about these packages. after 9/11, we implemented a procedu procedure that changed the way mail gets to the -- >> le

they fired tracer bullet into the air. i don't know if there was a gunfight as reported. i do understand that the suspect incurred injuries but some type of altercation, perhaps some type of gun fight ensued. >> suarez: do you know if there was an attempt to bring hostage negotiators to the scene to try to talk tsarnaev out of position he was in? >> i don't know the answer to that question. talking to police officers anonymously, they were under ordered not to talk to the media. however, i know some of these individuals. i know some of these cops and they said they just wanted to be over with and they indicated that the police officers within ought scene were makingse are ty were making progress and they expected it to be over with soon. sure enough, within a half hour it seemed to have ended with the capture a the suspect. >> suarez: are they take him to a nearby hospital. >> they are. i'm trying to determine which hospital. he was carried away in a vehicle not with blue lights flashing but in a vehicle where the windows were covered, a black vehicle, could have been one

watch the tracers, keep low. you may be there all night.ou may be there for the rest of your life. you watch the alleys and the windows for anyone you don't know. you don't know anyone. think through the rules of engagement, positive identification of a threat is required before you can fire, reasonable certainty. you're in the middle of an urban sprawl, your friend's shattered vehicle is upside down by the road ahead, extinguishers are all expanded, and marines are throwing sand on the wreckage. the tires cannot be smothered. you can smell the smoke, and all the while it isn't your house that you have invaded. the family beneath you is just waiting for you to leaf. someone is still shooting. you're not sure in the night vision equipment if you can see something moving. it can't be positively identified. you hold your fire, you hold your position. that can be your profession. you don't want to let anyone down. a bullet had gone out into other people's lives. we gathered some who lived there to fill in the holes left by the bombs left for us

there are tracers in the gunpowder, the pellets themselves, the ball bearings can be traced to the manufacturer and then the device itself actually would have a serial number that they can trace back to the manufacturer. from there they can determine where it came from possibly who purchased it and execute search warrants from there which would hopefully turn up the terrorists. i would say at this point the explosive device itself is probably the best evidence that we have had who did it, yeah. there was much confusion among the news outlets and others whether an arrest had been made or not where do you believe in terms of where we stand today in terms of identifying a quote suspect? >> i came out early yesterday, after i had information from the justice department that that was not accurate information that was being reported i think by cnn. and basically stopped false story from perpetuating. i asked janet napolitano this morning on the homeland security committee if she was aware of anybody, in custody who is a suspect in this bombing and she said no, there is not that's been confirmed. the

this is this block poud tkefrplt i was told that block powders teufp i can leak could he taeupb a tracerbi to lead them to a potential point of sale for that type of explosive. you've got a lot of forensic kwror that is moving forward very quickly at this this hour and the components being assembled here in the washington area, the fbi's kwan could he, virginia, lab that is kind of like an archaeologist piecing together a broken artifact from a site. they will rebuild the explosive devices to find the signature in this case, where the pressure cooker is from, the circuit board, also the blasting cap can be traced and the explosive itself, heather. heather: that is a great way to describe it, catherine like an archaeologist putting together a puzzle. where do they think the bomb was put together? do they have any idea? >> reporter: the latest information we have from a congressional source this morning is that the working theory is that because this type of explosive, the black powder, these were not devices that were assembled at a great distance and transferred in, the risk of a prematu

. >> they were not allowed to put tracers into fertilizers or gunpowder. and who bought it. >> stephanie: you know, it is interesting. an article in the "daily beast" today false flag, g.o.p. lawmakers embrace the crazy. they're talking about how they really are increasingly embracing these crazy conspiracy theories but it is affecting policy. that's why background checks didn't pass because of national registry hitler. >> yeah. i mean we keep -- >> hit hitler streak. >> stephanie: hitler flaw. >> we keep thinking we've hit some kind of tipping point where it is like they can't get any crazier. yet, there they are. they're scrawling on the wall with their own feces and we're thinking okay, it can't get any worse than this. what's next? i'm waiting for the cannibalism. [ laughter ] >> stephanie: all right. as are we. eat up, everybody. all right, rudeness, great stuff as usual. talk to you next week, honey. >> all righty, bye. >> stephanie: there he goes, rudeness. we have to play this. we'll post a link to it on our facebook page. because this gun stuff it

i had a fella named frank ahern visit me in atlanta, a skip tracer.n the internet and find it go increasingly difficult task. >> i'm going to send an e-mail to a lawn service company. ahern says that detailed information is something investigators never had. according to the chip maker intel, we send 204 e-mails every minute. the information about us contained in them is nearly limitless, says ahern. and you'd get phone records and say frank called, you know ted whatever hour. they didn't know the conversation twen frank and ted. with e-mails, frank e-mailed ted and this is what he wrote. if you delight things from your account do you-- >> the only delete button is on the laptop, there's no delete button on the internet. >> the internet is forever? >> the internet is forever. we're living in the era called big data. the concern, will that be big brother, is the government watching everything we do. certainly we know the political campaigns are and show you tonight how in 2012 president obama's campaign used all of those little digital trails at that w