Just found some interesting info about the Roswell incident that some believe is a governemntal hoax and some that actually believe the otherworldly beings.
"The US Government experimented with various airfoil designs, including a ceramic frisbee shape, launched with great slingshots. When too many details of these experiments leaked out, the government prepared a smokescreen. They pretended to leak documents claiming they found aliens in UFOs. Then they pretended to cover up these leaks. The result: Thousands of believers in the Cult of the UFO now generate so much noise, the Ruskies cannot get any clear signal on our actual experiments. "
The whole info is found here: http://c2.com/cgi/wiki?WhatHappenedAtRoswell