Pinotti faces the hot topic of the governmental censorships on unidentified flying objects, an impressive amount of real phenomena of a technological nature and unknown origin, of which the author illustrates evidence and testimonies in detail.

For the understanding of the UFO phenomenon, the Governments, the author claims, has put in action numerous official organisms of study and surveying in maximum secrecy. Like the CIA, the service of American intelligence, from whose secret documents, in part rendered famous thanks to the "Freedom of Information Act", there is also the popular incident of Roswell, New Mexico (USA), in which in 1947 a UFO crashed.

One more good work from Pinotti, a must read.