On September 27, the Executive Board of the American Library Association (ALA) sent a letter to FBI Director Christopher Wray expressing concerns about threats directed at public and school libraries and library workers. The letter cites bombing or shooting threats in the past two weeks that have temporarily closed Hawaii State Public Library System, Salt Lake City Public Library, Denver Public Library, Fort Worth (Tex.) Public Library, and Nashville (Tenn.) Public Library. “Given the seriousness and proliferation of these threats of violence and other acts of intimidation increasingly taking place in America’s libraries, we are gravely concerned for the safety of library workers and the millions of Americans who visit libraries each day,” the letter states.