Lights after dusk in Arlington, Va.I was on my evening jog, along N. Glebe Road near its intersection with Pershing Drive in Arlington, Va.I stopped and stared across the road (toward the west).There were two very bright, white lights not moving, but hovering above the tree tops. It was just after dusk and they were way too big and too low to be stars, but they did not move but hung in the sky. One was a short distance away from the second.They did not move unless they slightly drifted, for about 20 minutes, when they were no longer visible to me but were behind the tree tops.I kept thinking maybe they were helicopters, but they did not make any noise. This is kind of near military sites, like the Pentagon and not too far from National Airport.((NUFORC Note: Possible twinkling stars, or perhaps landing lights on aircraft. We do not know. PD))