Summary: Pakistan has blocked a vital supply route for U.S. and NATO troops in Afghanistan in apparent retaliation for an alleged cross-border helicopter strike by the coalition that killed three Pakistani frontier troops. … One-year retrospective: One year ago today, on September 30, 2009, Aubrey Immelman reported that the Princeton, Minn., police and fire departments and bomb squads from Minneapolis and Crow Wing County were responding to reports of suspicious packages at the Princeton post office, high school, and public utilities building. It was later established that the packages contained “inert powders” and no hazardous materials — an apparent hoax. Police ultimately took two local teenagers into custody a couple of days after the incident.