Remember those "weather baloons" found in New Mexico in the late 1940s that were rumoured to have been "flying saucers"? the FBI recently launched a thousands-strong online document archive called The Vault. Looks like the Government censors missed this one:
Please note: the content of the files in the Vault encompasses all time periods of Bureau history and do not always reflect the current views, policies, and priorities of the FBI.
New files will be added on a regular basis, so please check back often.