possible future egregious violations of the bill of rights, and, their words, stop a dictatorship from taking root in america. the oath keepers have pulled out of the armed march on almost washington citing some statements that indicate the event will have a confrontational stance. joining us now for the interview, i've been very much looking forward to this discussion is secretary of homeland security, janet napolitano. madam secretary, thanks for joining us. >> well, thank you. >> i know that you were part of the investigation into the oklahoma city bombing. you'll be participating in the commemoration on monday. do you feel like we approach the threat of domestic terrorism differently than we did before that incident? >> well, yes. in part because every time there is an incident -- and it's hard to describe something as horrific as the bombing of the murrah building as an incident.