UFO's fake or just a Government scare tactic?

I came across this interesting tidbit www.smh.com.au...
it says and i quote "A raft of newly unclassified CIA documents reveal that the remote possibility of alien invasion elicited greater fear than a Soviet nuclear attack.
More interesting still, the CIA documents show that despite decades of repeated public denials, behind the scenes there raged a series of inter-agency feuds which implicated the highest levels of the US government." i find this interesting mainly because what if UFO's are military PSYOPS which could make sense and also alot of 50-60s movies such as body snatches were based off of cold war fears and from the looks of it these fears can and may be used against us. like so many others i want to believe but i find it so hard to see where they lines of truth begins and fiction ends.