The Right to Print Arms

The media often scare us about 3D-printed guns. "Anyone can print it, no background checks, mental illness not a factor, virtually undetectable," a CNN anchor warns.

Politicians scare us too. It's "a direct threat to our national security," former Senator Bill Nelson claimed last summer.

But are they?

Josh Blackman says posting the 3D-gun blueprints is protected by the First Amendment, since the blueprints are a form of speech.