As long as there has been fascism, there has been anti-fascism -- also known as "antifa." Born out of resistance to Mussolini and Hitler in Europe during the 1920s and '30s, the antifa movement has suddenly burst into the headlines amidst opposition to the Trump administration and the alt-right. They could be seen in news reports, clad all in black with balaclavas covering their faces, fighting police at the presidential inauguration, and on California college campuses protesting right-wing speakers ...

Simply, antifa aims to deny fascists the opportunity to promote their oppressive...