With more states legalizing marijuana but it remaining illegal at the federal level, I'm kind of surprised I haven't heard about more confiscation based on pot use. Maybe it's something the feds just don't want to push too hard on or maybe it's more common and I'm just not hearing about it. Seems like tensions on that issue are bound to escalate in the future though.
https://fedsoc.org/commentary/blog-posts/marijuana-use-and-firearm-ownership