After Robert Kennedy Jr. called ABC journalist John Stossel a “flat-Earther” at the recent Live Earth concert, Stossel shot back:

Kennedy then urged the crowd to e-mail Stossel’s advertisers and “tell them you’re not going to buy their products anymore.” He also ripped Rush Limbaugh, Glenn Beck and Sean Hannity. Stossel struck back on Steve Malzberg’s WOR-AM show Wednesday night. “The level of [Kennedy’s] hypocrisy is endless,” the newsman fumed. “He flies in private jets while preaching this stuff. He says we have to go to alternate sources of energy. But when they propose a wind farm in Cape Cod miles out to sea where the windmills would be an inch in your eyesight, but it’s near the Kennedy compound, so he opposes it. I mean, he’s an imbecile.”