♪ oh, say, does that star-spangled banner yet wave ♪ ♪ o'er the land of the free ♪ ♪ and the home of the brave? ♪♪ >> well, that was beautiful. courtney, may i ask you the significance of 6:46? why that moment with the american flag being unfurled? >> reporter: so it's unfurled at sunrise. every year they do this as a remembrance of the 59 people killed on american flight 77 and the 125 killed inside the pentagon during that attack.