Of course my vote had to be #4. I strongly believe the public is kept in the dark on purpose.
Just one example among the countless others...
From Wikipedia.
On the evening of December 9, 1965, a large, brilliant fireball was seen by thousands in at least six U.S. states and Ontario, Canada. It streaked over the Detroit, Michigan – Windsor, Canada area. Reports of hot metal debris over Michigan and northern Ohio, grass fires, and sonic booms in the Pittsburgh metropolitan area were attributed to the fireball. Some people in the village of Kecksburg, about 30 miles southeast of Pittsburgh, reported something crashing in the woods, wisps of blue smoke, vibrations and a "thump".
According to an initial story in the Greensburg Tribune-Review "The area where the object landed was immediately sealed off on the order of U.S. Army and State Police officials, reportedly in anticipation of a 'close inspection' of whatever may have fallen ... State Police officials there ordered the area roped off to await the expected arrival of both U.S. Army engineers and possibly, civilian scientists." When State troopers and Air Force personnel searched the woods, they reportedly found "
absolutely nothing"
In December 2005, just before the 40th anniversary of the Kecksburg incident, NASA released a statement reporting that experts had examined metallic fragments from the area and determined they were from a Russian satellite that re-entered the atmosphere and broke up, but records of their findings were lost in the 1990s.
Leslie Kean, described as "an investigative reporter backed by the Sci-Fi Channel", reportedly "sued NASA under the Freedom of Information Act" for the lost NASA records. On October 26, 2007, NASA agreed to search for those records after being ordered by a court. During the hearing, Steve McConnell, NASA's public liaison officer, testified that two boxes of papers from the time of the Kecksburg incident were missing. Loss of records is not a unique case for NASA; for example, the original tapes recorded during the televised Apollo 11 Moon landing were
misplaced or reused
More recent comments by NASA are
less supportive of a link to a Russian satellite:
There is some speculation that the reentry of the Cosmos 96/Venera-type spacecraft was responsible for a fireball which was seen over southwestern Ontario, Canada and at least eight states from Michigan to New York at 4:43 p.m. EST (21:43 UT) on 9 December 1965. Investigations of photographs and sightings of the fireball indicated its path through the atmosphere was probably too steep to be consistent with a spacecraft re-entering from Earth orbit and was more likely a meteor in a prograde orbit from the vicinity of the asteroid belt, and probably ended its flight over western Lake Erie. U.S. Air Force tracking data on Cosmos 96 also indicate the spacecraft orbit decayed earlier than 21:43 UT on 9 December. Other unconfirmed reports state the fireball subsequently landed in Pennsylvania southeast of Pittsburgh near the town of Kecksburg.
Round and round we go but it is getting much more difficult to deny and conceal the countless UFO sightings in the era of everyone gazing up at the sky and being aware.