When Senator Mark Dayton shut down his Washington office last week, ostensibly out of concern for his staff's safety, many on Capitol Hill wondered if the Minnesota Democrat knew something everyone else didn't. The answer, it turns out, is far from it. Dayton last month received the same briefing as his fellow Senators about a CIA worst-case scenario involving simultaneous terrorist attacks across the country. Yet he apparently took the hypothetical threat as an imminent one. "Most people who heard the briefing," sniffs an intelligence official, "understood the context. It was theoretical."
Even stranger, Dayton sent his staff home several days...