For anyone not getting his news from CNN, the Journal's piece about it this AM was a little more informative.
No-knock warrants are illegal. They were illegal before this decision and remain so. The issue was the exclusionary rule. Could violating the no-knock rule result in excluding evidence thus obtained? The answer here is no, and that was the crux of the case. Anyone being served with a no-knock warrant has the option to bring suit against the agency serving it for violating the law. This is what the case is about.
But every time we get one of these people here moan about the coming police state. It isnt happening. We are a long long way from it.
Sure, no-knocks are illegal, technically. In practice, however, it's a different story. In this case, the police knocked and waited about 4 seconds before breaking the door down. The appellate court ruled that breaking the "knock and announce" rule was only a minor infraction and allowed the evidence. The US Supreme Court just upheld that. The exclusionary rule was the only defense against police abuse of no-knocks and now that is gone. Yeah, no-knocks are illegal.