They have been doing research on that very thing since at least the late 90's (when data specific studies first began to be publish on that topic. Not so much as controlling your thoughts in the way you probably think but to disrupt/ delay/ and retard the natural thought process's via the amount of magnetic electric interference one is subjected too t and revert to being an automaton able to only function the most basic of tasks, ie 'worker drones'. ) and with advances in technology etc that will have only continued.