 I have a tough time believing that anybody could be this incompetent. I really do. It's question three. Why did agents fail to install a barrier between the vulnerable high site where the gunman took position and the stage? Using a large obstacle such as a truck or large campaign sign, once again, should be standard operating procedure. The lack of significant immovable object afforded the gunman an unimpaired line of sight to his target. Explain why your agency did not take such common sense measures for the event.