If you can't beat members of the "birther" movement, join 'em. That's the approach President Obama took on Saturday night in Kenya, his father's homeland, when he made a wisecrack about his birthplace — which suspicious critics have harped on for years. "Some of my critics back home might be suggesting I'm here to look for my birth certificate," Obama said while making a toast at a state dinner hosted by President Uhuru Kenyatta. "That's not the case." In 2011, Obama made his birth certificate public after so-called birthers questioned his eligibility to be president, claiming he was not a...