There are no words.

Via Breitbart:

While speaking with fellow Senate Democrats against 3D printed guns, Sen. Ed Markey (D-MA) described 3D printer cartridges as being “as deadly as a gun cartridge.”

Markey referenced firearms without serial numbers — calling them “untraceable firearms” — then referenced “purely plastic firearms,” which he described as “firearms … [that] will pass through metal detectors without a blip, a buzz, or a bell that it is going on.”

He said the “online availability of downloadable firearms is a public safety crisis.”