India, April 16 -- The secret operations of US Central Intelligence Agency (CIA) remained hidden for decades to protect national security but a recent release of the files on the assassination of John F Kennedy has sparked renewed interest the agency's secret missions.

These documents have detailed Russian alien encounters or mind control experiments recorded by the agency. Over the years, CIA's declassified files have revealed the agency's role in creating fake porn tapes of world leaders, 'demon dolls' of Osama Bin Laden and even attempting to develop remote control dogs, a report by the New York Post said.

Here are some of the CIA's most shocking missions from their archives which are now public:

In the 1950s, the CIA planned an ope...