clearance process or the government when they grant the clearance somebody's concern? >> right. usually the question is, well, why didn't this mental health issue get more attention? why was this person allowed to stay in the general population? this is different. this person was given special access to a special situation that is earned vetting. >> that is a difficult line when someone is having emotional difficults, when do you say they might be a risk, report it to police? but in this instance, there's a public record, all involving anger. his father is quoted, we don't know the particulars of this, in this police report saying he had some 9/11 ptsd issues. >> he talked about that as well, allegedly, that the suspect mentioned it to police. >> this is a public record you can find, you assume a government contractor and the military have easier access to