 It nevertheless is the responsibility of Secret Service to make sure that happens. The job of U.S. Secret Service is to protect the president. You show up to a small town of 12,000 people that has a handful of buildings of any size in it, and you're not going to go check those buildings when, according to reports, Secret Service knew these were security threats. You're just going to trust that to some almost certainly underfunded and understaffed local police department out of your mind if you think that's acceptable.