I found an interesting article today that discounts the recent Jerusalem UFO incident as a hoax. Many of the reasons discussed sound similar to the reasons we often suggest to disprove claims and evidence of paranormal activity as hoaxes. Anyway, I thought you might enjoy this:
Radford, Benjamin. "Hoax in the Holy Land: Jerusalem UFO a Proven Fake." on-line Life's Little Mysteries 07 February 2011. <www.lifeslittlemysteries.com/jerusalem-ufo-hoax-1319/> (http://www.lifeslittlemysteries.com/jerusalem-ufo-hoax-1319/)