of justice will utilize ncetar and tedac. >> -- run chiefly by the fbi deals with the examination of ieds we see coming out of afghanistan and other places. ncetar in contrast run by the atf deals with -- i wouldn't want to call them the more common. >> more prevalent maybe. >> more prevalent explosive devices. and i think that you're right, they you're right. they have fundamentally different responsibilities, but they compliment one another. and the location of them in that place i think makes a great deal of sense. could you describe the value of co-locating these facilities on a large federal arsenal with lots of range of space? >> yeah. >> there's a great deal of cross pollenation, the ability to talk to one other. although the purposes are distinct, there are certainly going to be scientific things, breakthroughs perhaps that you can exchange information by having people who are relatively close by. i think that having the two agencies that are primarily responsible for explosives determination and prevention and having them close by even though they have distinct roles, they h