things that we say, you need something more than that flimsy paper mask. >> brian: we didn't know. >> steve: who knew? thank you very much. >> gretchen: in a little over two hours, president obama will arrive at the pentagon to remember the 184 innocent lives lost in the attack there. our own jennifer griffin is live for us now. good morning, jennifer. >> good morning. the sun just came up here at the pentagon. you can hear the planes up overhead. 11 years ago today, at 8:20 in the morning, american airlines flight 77 took off from dulles airport at 9:37 a.m it slammed into the outer ring of the pentagon, slicing through three of those rings. essentially killing 184 people on the ground. 125 people were killed on impact. there were 59 people on board the flight that day. there are 184 separate benches at the pentagon memorial behind me. it opened in 2008 and cost $22 million to build. it's open 24 hours a day, seven