On the Second Amendment
What is the purpose of the 2nd amendment to the US Constitution? Not self-defense from muggers, rapists, or even murderers. The 2nd amendment exists to allow citizens to protect themselves from their government. Citizens have a responsibility to resist tyranny and oppression and they must have the ability to do so.
This is probably a good time to mention that nothing I am writing about here has anything to do with current politics in the United States. The US government is not tyrannical and there is currently, in my mind, absolutely no need for anyone to rebel against it. In fact, the election of 2008 showed just how healthy the US democracy actually is.