[yttribium]

Which the FDA in fact have a pattern of doing with various supplements. https://en.wikipedia.org/wiki/Biomedical_Research_%26_Longev...

And the ATF with pistol braces.

It's a standard regulatory tactic at this point.

[koolba]

The NFA rules making no sense not withstanding, the pistol brace one is particularly egregious as they explicitly said it’s legal in a prior determination and there’s millions of them in circulation.