We own assault weapons, because we live close to the border, and because we can.
Every argument in support of "Gun Control" completely ignores the nature of government and human nature.
It was because our founding fathers understood the nature of governments and human nature that they saw a need to include the Bill of rights along with the Constitution.
And this one single fact is immutable, the principles that the Constitution and the Bill of Rights were founded upon were timeless and it makes no difference what technology we are talking about, whether ball & musket or a .50 cal machine gun. Human beings have a God given right to protect themselves and according to the Declaration of Independence, "That to secure these rights, Governments are instituted among Men, deriving their just powers from the consent of the governed,..."
Ted Nugent nails it here.
http://www.youtube.com/watch?v=wlkhQ6GybPs