They have a license to manipulate elections, and overthrow governments, too. They do it all the time in the third world, its what they train to do, and its what we pay them to do.
Their charter does not permit them to do this within the US itself, though. For having crossed this line, heads must roll, and for that matter, people should be prosecuted. Depending on the motive behind violating their charter, some agents should probably be jailed at Guantanamo.
Shake the place like a dirty throw rug.