The BBC reports:  UFO study finds no sign of aliens

See the complete article at:

http://news.bbc.co.uk/go/em/fr/-/2/hi/uk_news/4981720.stm

The official file could be find at: http://www.mod.uk/DefenceInternet/FreedomOfInformation/PublicationScheme/SearchPublicationScheme/UapInTheUkAirDefenceRegionExecutiveSummary.htm