top command staff, rushed to the credit union. >> what do you do to secure the area? >> oh, immediate response. pretty much all available personnel were sent to the area. we cleared buildings in the area. we put schools in lockdown. >> they closed off the surrounding streets and shut down a nearby major thoroughfare. s.w.a.t. teams and heavy equipment rolled in. and the state's bomb squad was called to get the device off of matt. >> shutting down an interstate is not a small decision. calling in other agencies to assist is not a small decision. and all those decisions had to be made. and they were made very, very quickly. >> back at the credit union parking lot, sgt. mocarsky, a member of the crisis negotiation team, became the point man to communicate with matt. the sergeant yelled his cell number to yussman and they started to talk over the phone. so what's the demeanor of this man who says he got a bomb on him? >> even keeled. you know, he was very calm for the situation. >> at...