– Security has been beefed up at federal buildings across the country—not because of any specific threat, but because of "world events," the Department of Homeland Security says. The Federal Protective Service, which guards more than 9,500 federal courthouses and other buildings nationwide, boosted security measures over the weekend, days after a gunman made it into Canada's Parliament building, reports the Washington Post. "The reasons for this action are self-evident: the continued public calls by terrorist organizations for attacks on the homeland and elsewhere, including against law enforcement and other government officials, and the acts of violence targeted at government personnel and installations in Canada and elsewhere recently," DHS Secretary Jeh Johnson said in a statement. The chairman of the House Committee on Homeland Security hailed the move, while Johnson urged state and local security officials to also prepare for "potential small-scale attacks by a lone offender or a small group of individuals," USA Today reports.