Less than 24 hours after anti-Bush peace activist Cindy Sheehan was arrested for "unlawful conduct" at last night's State of the Union address, the charge is being dropped and federal officials are apologizing. "The officers made a good faith, but mistaken effort to enforce an old unwritten interpretation of the prohibitions about demonstrating in the Capitol. The policy and procedures were too vague," said Capitol Police Chief Terrance W. Gainer. "The failure to adequately prepare the officers is mine." Sheehan was taken into custody shortly after unzipping her jacket, revealing her T-shirt, which had the message, "2245 Dead. How many...