that local authorities and the government keeps of people. what can you tell me about the profile of something pllike thi matching up with somebody on a list? how do they do that? they have in place a number of policies with local law enforcement working together to prevent people from getting certain materials that would be precursors for bombs and for doing this kind of thing. at this low level, we are not talking about somebody who is buying a lot of ammonia nigh trait, some of the straightforward but large scale bomb components. as to lists of people, every law enforcement group is going to have persons of interest that they are aware of, specially now in the era of radicalization online with the whole spectrum of what that brings to it on the left, the right, jihadists and an arcists. there are going to be those that are known to law enforcement. i would be speculating going beyond that right now. we simply don t have anything other than devices and a target