Terroristic Activity News Today : Breaking News, Live Updates & Top Stories | Vimarsana

>> well, you know, i -- the marathon is a pretty special day around here, as you know. and i started this morning visiting mayor menino in the hospital who was devastated he couldn't be at the marathon today. he's on his way here now, i think, am i right? from the hospital. so obviously he is as concerned as rest of us are about the safety of people who come for this iconic experience here in the city. >> can you address reports that you're looking for a specific kind of truck or specific kind of person? >> no, there was no specific type of truck that we're looking for at this point in time. w...

Looking at that tape right now? let me go to clint van zandt. he's standing by. clint, you know, you're an fbi profiler. a lot of this, the evidence, the technical things that are happening right now is it find out who could be responsible. and i was asking evan, the world has changed, for example, since the atlanta bombing. clint, you have cameras on every corner these days. is that the first source or one of the major sources for the investigation? >> yeah, well, they've got a lot going on. number one, they're trying to find out obviously who's responsible. could this be simply a -- i don't ...

Set to go off 10 or 15 minutes later hoping to catch first responders? >> yeah. >> so we don't know how sophisticated it is. what we do know right now is this is not a natural source. this is not an accident. this is some type of criminal/terroristic activity. >> to your point, clint, you make this point about it doesn't have to be sophisticated. for example, with "the new york times" bomber, this was a guy who had bumbled, if you will, according to analysts, his waypa vehicle, so much so it started to smoke and people in "the new york times" area -- times square area, pardon me, noted this an...