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Deployed a top terrorism group because they worked on the presumption it was credible. >> we operate here in washington, dc that theres an elevated threat level at all times. we never lower our threat level in terms of our posture and were aware of the discussion and chatter around the fourth of july event and all those threats and we take those into account. we change our tactics for different event but always maintain a high posture. >> reporter: also today we had confirmation from the pentago...