British Government releases secret UFO files

UFO's are a controversy that never seem to go away; they have been reported by people all over the world, some of whom can be dismissed as pranksters, others are reported by serious people such as police officers, military men and airport officials. They have been seen on radar, and of course, in the most extreme of cases, people have reported actual contacts with aliens. On the flip side, there are many phenomenon that can be used to explain some of these sightings such as weather balloons, secret aircraft, and freak natural occurrences such as ball lightning, unusual light patterns, storm events, etc.
The British Government had compiled a secret report about the reportings, and have finally released the report after a long time:

Britain's Ministry of Defense has released files on UFO sightings dating back to the 1970s, including witness accounts and the government's response. The ministry on Wednesday released the files as part of a four-year project to transfer all of the UFO documents to the National Archives to make them available to curious members of the public.
The files released Wednesday cover 1978 to 1987. The rest, dating from the 1950s and covering recent history, will be released over the coming years. Reported sightings typically describe various shapes and colors of lights, moving in formation or hovering in the sky. Witnesses reported orange, red, white and green lights that were diamond-shaped, square, or cigar-shaped. They reported them to police, who have a standard 16-question form specifically for UFO sightings.

Some of them are reported as hoaxes, but the overall report could cause a great amount of wonder about how many of these are true and how many were indeed hoaxes.