Aaron McGruder handed out equal-opportunity insults Thursday as the keynote speaker for Indiana University's Black History Month activities.Republicans, the 28-year-old cartoonist said, are power-hungry killers. Yes, literally.Democrats are losers. Punks.And the Green Party? They're so naive they ran a brainy, awkward nerd for president.He didn't spare the several hundred people who came to hear him speak, either."Americans have completely and totally lost control of their government," he said, and they clapped. "You're applauding as if that ain't your fault," he added. McGruder draws "The Boondocks," a comic strip that appears in more than 200 newspapers, including The Herald-Times. And his...