He was delivering a political statement. Doug Hughes, a 61-year-old mail carrier piloted his tiny one-man helicopter into restricted airspace today in hopes of drawing attention to campaign finance reform. He was immediately surrounded by Capitol Police with rifles, who have detained him. Before his flight, Hughes explained that he would be carrying 535 letters, one addressed to each member of Congress. He wasn’t carrying anything dangerous, but that won’t fly with the FAA, which is holding its own investigation.