Whatever they were, these phenomena reported to Britain’s Ministry of Defense over the years and made public this month were almost certainly not actual alien aircraft piloted by actual alien beings. “The government has been telling us the truth,” declared David Clarke, a senior lecturer in journalism at Sheffield Hallam University, who has a side interest in U.F.O.’s. “There are a lot of weird things in the sky, and some of them we can’t explain, but there’s not a shred of evidence for a single alien visitation.” [ Visit Website ]