manufactured here in the united states or imported into the united states, they re required to have the manufacturer info and serial number on there, which in turn leetsads to trace i know you ve dealt with other things like this, the atf in general, can you describe how these shooters went about business? they seemed to be very professional. they seemed to know what they were doing. they seemed to have things well planned. my experiences with other mass shootings or we referenced the boston bomber earlier, they re indicators this was well planned out. and it was to be violent in nature. they were intact cal gear. i don t know if they had ballistic protection, but they were intact cal gear and had several magazines of ammunition fashioned to their body. they were ready for a gun fight should that occur. that was atf spokesperson meredith davis speaking with our