USAir flight cruised by on approach to DCA this evening during a particularly interesting sequence of the fireworks display on the mall. For about 45 seconds there was a sequence of fireworks going off that sounded and looked exactly like AA flak. I'm sure that would have been an interesting sight to wake up to as you look out the window.
Throughout the display, at least a dozen aircraft landed on the potomac-inbound approach leg to DCA. I'm sure they got a great view.