UFO At O'Hare?

When I first saw this over the weekend, I was kind of in a hurry so I just read the headline in my Netvibes page, but apparently there was a UFO or UAP sighting over O'Hare in November. And the FAA's answer is something right out of script of Men In Black or The X Files.

(Chi Trib) "Our theory on this is that it was a weather phenomenon," she said. "That night was a perfect atmospheric condition in terms of low [cloud] ceiling and a lot of airport lights. When the lights shine up into the clouds, sometimes you can see funny things. That's our take on it."

Apparently "swamp gases" won't fly in Chicago.