The U.S. House of Representatives passed a collection of gun control policies packaged as the Protecting Our Kids Act on Wednesday. The bill includes a ban on high-capacity magazines and increases the age requirement for purchasing semi-automatic rifles to 21, but these are not the most concerning sections of the legislation. The act also contains a ban on ghost guns that opens the door for further government involvement in the dissemination of information.

“A firearm, including a frame or receiver, that lacks a unique serial number engraved or cast on the frame or receiver by a licensed manufacturer or importer in accordance with this chapter” is defined as a “ghost gun” in the bill.