Paraphrased from a most excellent post by Milton Wolf, who talks about easily smashing what he calls the Democrat's dumbest gun control argument, the old "the Framers didn't write the Second Amendment with AR-15's in mind" canard.
Bang-bang, this argument is, ahem, shot down:
First of all, remind Democrats that the Framers didn't write the First Amendment with cable television, Internet communications or even the telegraph in mind. Should we limit the press's freedom of speech to the movable type printing press which was the primary means of mass communication at the time of the Framers?
The limits of the Second Amendment is a fair question that deserves an answer. It's simple: Law-abiding, free people should have the right to arm themselves with whatever weapons their government would use against them.
And pictures do speak louder than words:
In fact, are not the citizens -- not the police -- always the first ones who are forced to face those dangers?
There is no justification for the public servant police to be more heavily armed than the law-abiding public they serve ... unless ... the government's intention is to be more powerful than the people.
Which brings us to the title of this post. And this:
“When governments fear the people, there is liberty. When the people fear the government, there is tyranny. The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government.” - Thomas Jefferson (1743-1826), US Founding Father, drafted the Declaration of Independence, 3rd US President