same time. five or six at a time. something you can really key in on. but when we talk about forensics, it's not just obviously dna and prints, which are the obvious links you're looking for, but also a very close examination of the components and tracing their origin. >> people, too. what did they know? did they see anybody buy this stuff. do they know someone talking about doing this kind of thing. i'm sure they're canvassing for that kind of information and would welcome it if folks out there believe they have something to add. we're awaiting a news conference about to begin in new york city, just down the street from where the 12th package was discovered. we'll bring that to you live when it comes. meanwhile, we'll take a short break.