....the logistics of pulling that off practically assure that information will leak to people who are not involved.  To the extent that this has anything to do with our military capabilities, patriotic (Constitution-supporting) members of the military will hear about it.  And they in turn will do whatever is in their power to stop it.  

See also General Smedley Butler and the DuPont plot to overthrow Roosevelt.  This is not a conspiracy theory, it made it into the Congressional Record.