Brian Klaas: It's the Guns.

[crickets]

4. The ATF's Nonsensical Non-Searchable Gun Databases, Explained (1 of 2 related articles)

https://www.thetrace.org/2016/08/atf-non-searchable-databases/

The 1968 Gun Control Act gave the ATF authority to regulate federally licensed gun dealers. In 1978, the ATF tried to make dealers report most sales each quarter. The National Rifle Association and other groups denounced the plan, and lobbied to kill the reporting requirement. Congress did as the gun lobby requested, blocking the quarterly report proposal and reducing the ATF’s budget by $5 million: the amount the agency had sought to update its computer capacity. [snip]

The war on searchable technology continued. In 1986, Congress enacted the Firearms Protection Act, which bans the ATF from creating a registry of guns, gun owners or gun sales.

Congress also put a rider barring the agency from “consolidation or centralization” of gun dealers’ records in every spending bill affecting the agency from 1979 through 2011, then made the prohibition permanent, under law.

First comes keyword searches, and the next thing you know, you have national gun registries.

That, at least, is the rationale for the law that prevents the ATF from creating a searchable system. Gun rights groups argue that once the government has a list of firearms, it could use that list to confiscate weapons from private citizens.