Jon Chessoni, a first secretary at the Kenyan Embassy in Washington, can’t understand why his office gets so many baseless questions about whether Barack Obama was born in Kenya. “It’s madness,” said Chessoni on Monday. “His father, in 1961, would not even have been in Kenya. When this matter first came up, the Kenyan government did its research and confirmed that these are all baseless claims.” Nonetheless, Chessoni spent part of his day fielding inquiries about an image posted at the fringe conservative web site WorldNetDaily–a purported “certified copy of registration of birth” belonging to “Barack Hussein Obama II,” submitted...