Firstly, when you state an argument it may be helpful to give evidence and facts supporting your main point instead of saying that "it's a stupid joke". Secondly, the federal government has shut down in the past. It is not a scare tactic, this has historical precedence and only occurs when a proper budget cannot be agreed upon. Thirdly, the post office wouldn't close because it is internally organized and ran, the federal government only owns it. Lastly, thanks for wasting my time. Read a book.