A standoff between police and a man on a tractor at the Washington D.C. Mall has ended peacefully. While I applaud the restraint of local law enforcement authorites, the fact that this individual could drive a tractor into one of Washington D.C.'s most prominent public landmarks and threaten to detonate a bomb--sparking a panicky evacuation--doesn't do much credit to antiterrorism preparedness.
Update: The editorial board of the Washington Post expressed much the same idea (via just-permalinked DC-area blogger Jason Rylander).
Update 2: Nathan Newman raises an interesting question: "It will be interesting to see if the government brings the full weight of the Patriot Act down on this guy-- by it's definition of terrorism as threat of violence to influence US government policy, this white tobacco farmer is the clearest example, far more than any other US residents currently jailed under the Act."