The Purpose of the US Government

If there is one thing I wish everyone understood it is this:
The purpose of the US Government as defined by the US Constitution is to protect the individual rights of its citizens. The rights of humans do not come from any government or from any document. Your rights as a human come from the simple fact that you exist as a human. The US Constitution (or the Bill or Rights) does not grant human rights, which are unlimited, those documents were created to preserved the human rights by limiting government’s ability to interfere or oppress people’s rights.
This article says it well:
http://thefoundationforum.com/2007/05/purpose-of-u-s-constitution.html