There's little need to program people to shoot stuff up. There are bad people all over the place. There are actually bigots out there that are stupid enough to shoot up a Sikh temple. There are nutters out there who delude themselves into thinking they are the Joker. There are nuts all over the place. There is no need for Obama to "program" them. When Mustaine say's this stuff he just makes our side look dopey. And that's too bad because I'd love to have a well spoken rock n roller on our side.
The timing of nutjob outbreaks is often just too good to be coincidence.