From HuffingtonPost:

“No definitive proof has ever surfaced to confirm this president-meets-aliens tale. However, according to Timothy Good, Eisenhower and FBI officials arranged for the out-of-this-world summit at Holloman Air Force Base.”

http://www.huffingtonpost.com/2012/02/14/eisenhower-met-aliens-says-timothy-good_n_1277133.html?ref=weird-news