On 10/28/14, I gave two talks on the constitutionality of banning 3D-Printed guns, under the 1st and 2nd Amendments. The first talk was at the University of Arkansas at Little Rock, the second was at the University of Memphis.
Here are recordings of the talks and pictures of the event. At the former, I was joined by Professor John DiPippa who graciously provided comments on my talk.
The first video is of me. The second is of the slides with a screen share. It is unfortunate Google Hangouts does not let you stream your video, and screen share at the same time.