Pretty cool UFO news if you ask me, but I'll let you draw your own conclusions. 
http://news.yahoo.com/news?tmpl=story&u=/nm/20050427/us_nm/bush_airspace_dc_7
WASHINGTON (Reuters) -
President Bush was hustled from the Oval Office and into an underground shelter on Wednesday after a blip on a radar screen was initially mistaken for an aircraft entering the restricted airspace around the White House, officials said.
The Secret Service determined minutes later that it was a false alarm. A flock of birds or a reflection could have caused the blip. Officials said the investigation was ongoing.
http://news.yahoo.com/news?tmpl=story&u=/nm/20050427/us_nm/bush_airspace_dc_7