3-D printers can create many things: furniture … human limbs … firearms … The first 3-D printed gun was fired five years ago. Now designs for these firearms are readily available online after a quiet court settlement May. How does 3-D printing even work? And what happens if anyone can print a gun right from their living room? Want to support 1A? Give to your local public radio station and subscribe to our podcast. Have questions? Email the show at 1a@wamu.org and find us on Twitter @1a.