The pitched battle over health care has unleashed a rash of vandalism and attacks directed at politicians, with at least 10 House Democrats reporting death threats or incidents of harassment or vandalism at their district offices over the past week. More than 100 House Democrats met behind closed doors Wednesday afternoon with representatives of the FBI and the U.S. Capitol Police. The lawmakers voiced what one senior aide who was present described as "serious concern" about their security in Washington and in their home districts when they return this weekend for the spring recess. Usually only the congressional leadership has...