I remember during the Boston bombing investigation, Tim Clemente, a former FBI counter-terrorism agent, told Erin Burnett on CNN that they could go back and get

I remember during the Boston bombing investigation, Tim Clemente, a former FBI counter-terrorism agent, told Erin Burnett on CNN that they could go back and get access to the content of the calls between the deceased bomber and his wife, Katherine Russell. After some Googling, I found a partial transcript of the CNN interview... "Almost immediately Erin Burnett, the host of CNN's Outfront, wanted to know how the government knew. Aren't phone calls supposed to be private? She interviewed Tim Clemente, a former FBI counter-terrorism agent on May 1, asking:" Is there any way … they [the federal investigators] can try to get the phone companies to give that up … It’s not a voice mail. It's just a conversation. There’s no way they can actually find out what [was said on the call], right, unless she tells them? Clemente: There is a way. We certainly have ways in national security investigations to find out exactly what was said in that conversation. It's not necessarily something that the FBI is going to want to present in court, but it may help lead the investigation … we certainly can find that out. Burnett: So they can actually get that? … that is incredible. Clemente: Welcome to America. All of that stuff is being captured as we speak, whether we know it or like it, or not. Source: http://www.thenewamerican.com/usnews/crime/item/15340-boston-bombing-investigation-reveals-government-surveillance-of-phone-calls http://www.thenewamerican.com/usnews/crime/item/15340-boston... When I initially saw this on CNN, my first thought was, do they also have access to all photos and videos that are taken and transmitted online? And if so, couldn't they stitch together a multi-angle montage from all the photos and videos taken at the scene of the Boston bombing (like http://photosynth.net http://photosynth.net), rather than asking everyone to manually scour through their personal footage? UPDATE: CNN Interview Clip (http://www.youtube.com/watch?v=pPHZrVPt4-U http://www.youtube.com/watch?v=pPHZrVPt4-U) CNN Follow-Up Interview (http://www.youtube.com/watch?v=vt9kRLrmrjc http://www.youtube.com/watch?v=vt9kRLrmrjc)