Happily that is no longer the case.
It would be easier to keep a flying saucer landing on the White House lawn secret than to keep this secret.
:-)
Easy-peasy, already done...
1952 Washington, D.C. UFO incident
The 1952 Washington, D.C. UFO incident, also known as the Washington flap, the Washington National Airport Sightings, or the Invasion of Washington, was a series of unidentified flying object reports from July 12 to July 29, 1952, over Washington, D.C.