CNN Anderson Cooper 360 April 23, 2013 00:15:00
Records, what were their e-ma s e-mails, who were they in communication with. that's obviously a huge part of the investigation. the other part is scientific. it's going to take a tremendous forensic effort to identify just how these bombs were made, where they were made, what the raw materials were, whether they can prove that the brothers bought them, assembled them, all of that is extremely complicated and time-consuming, and that's where i think a lot of the time will go over the next few months, as the government seeks to show how this crime unfolded in precise detail. >> jeff, i apprecia...
Source: archive.org