 Why? Why didn't you put some elevated visual obstacle so that if a shooter did get up there, that they wouldn't be able to see the president or have a clear line of sight? Why? Why am I the one asking this now? Members of Congress, are you writing this down? Why didn't you block the line of sight? You're telling me you couldn't find some kind of campaign poster or something to put up where at least the shooter couldn't have seen Donald Trump?