LAS VEGAS - Arizona Sen. John McCain said critics complaining about his recent joke about bombing Iran should "lighten up and get a life."
"Please, I was talking to some of my old veterans friends," the Republican presidential candidate told reporters Thursday, a day after he parodied the Beach Boys song "Barbara Ann" at a campaign stop in South Carolina. The senator changed the song's title to "Bomb Iran."
"My response is lighten up and get a life," he said.
McCain's quip, which was circulating on the Internet, was prompted by an audience question about whether the senator believes the …