 You put snipers on the roof. Well, then, even though the perimeter did not include that, and this is what I heard the Secret Service say, it was outside their perimeter, it's still a basic principle, a basic tenet of security to secure the buildings, anything within range of the building, because historically, presidents are either shot from rooftops, like Kennedy, or up close, like Reagan. So those are the two scenarios that we have to deal with historically.