Pentagon Plane, page-331

Norad were running a large exercise, there were
Several Ghost planes inserted into the radar with overlapping flight paths, with intercept assets sent
out of range over the Atlantic. Pilots and controlers
said they couldn't identify targets. I don't know what
Happened to the planes /passengers, I have read
compelling stories of what actually happened,but
we are better sticking to areas where hard evidence
and facts to the contrary are available.