The aliens may be dead but their AI creations live on....

http://phys.org/news/2016-01-aliens-silent-theyre-dead.html

UFOs and their alien cargo were largely the products of an imagination spurred by the Cold War between the USSR and the US. [Really?]

http://economictimes.indiatimes.com/magazines/panache/terrorism-has-changed-our-way-of-seeing-ufos/articleshow/50780007.cms