Fear on capitol hill. the navy yard is blocks away. as you've shown from the maps, there was panic on capitol hill when this happened. dana, you were there all day, there was a lockdown at the senate, and i know you were talking about how that felt, what it was reminiscent of, but it was only the senate. >> reporter: that's right. and it happened hours after the incident at the navy yard, but it was about an hour and a half after the d.c. police chief announced that there could be two suspects at large. so what happened was this door and the doors around it on the senate side, they were closed...