What is the difference between Classical Liberalism and Libertarianism?

First off, Libertarianism is an evil form of CONServative ideology that seeks to dismantle our federal government and abolish all taxes.  These losers are pitiful welfare queens who want something for nothing.  They don't believe in public schools, public roads, The Food and Drug Administration, The CDC, the Post Office and most government agencies.  They are losers. 

Classical Liberalism is what today's modern Liberals follow and it is the same form of political ideology that our Founding Fathers had when they wrote the Declaration of Independence.  American Liberals believe in the American values that verify we are all equal and deserving of rights.....ALL OF US!

Please!  Don't confuse the two!

They are virtually identical. The terms are often used interchangeably. 

The only real difference is that libertarianism is modern because modern liberals hijacked the word "liberal" so a new word was needed to describe classical liberals. You can't have two diametrically opposed groups called the same thing. It's confusing to stupid people (which is exactly why modern liberals did it)