Scores of police are on the scene at the Holocaust Memorial Museum in Washington DC after shots were fired inside the complex. According to early reports, two people were hit. A rifle might have been used as well. An eyewitness account claims that a security guard was "down and bleeding on the floor." San Francisco's Holocaust memorials, as many of you recall, also have trouble keeping chaos at bay. The gunman was shot and arrested. DCist has more on the story.