Lawrence has a long but info-rich post about the Supreme Court's unanimous decision that the local Po-Po can't just grab your guns without a warrant. This seems a good summary:
In some ways this was a very narrowly tailored opinion, in that the Second Amendment was not invoked at all, only the Fourth. And indeed, Justice Samuel Alito’ concurring opinion specifically states that “Our decision today does not address those issues” in relation to the constitutionality of red flag laws. However, the decision was a blow for individual rights against warrentless police seizures in the home. Also, by explicitly including guns as property that is equally protected from such warrentless seizures, the Supreme Court has properly supported Second Amendment rights against the state’s overreach.
Now if they could do something about civil asset forfeitures…