I see where most of you are coming from, but if you are actually innocent (which you are in self-defense), how can anyone PROVE that you are guilty of MURDER?
It's not going to happen.
I understand you might have more questions to answer, but there's so many ways to prove your story matches the scene before they prove you are guilty of murder just because you have a can on your gun.
If you are prowling the streets with a silenced gun in your car when it happens, then you MIGHT have a problem. But in your home? No way. An annoying trial? Big deal. Someone could have taken your life in your own home, and you took action. Proving your innocence in court is a small price to pay for your life. In the end, if you were acting in self-defense it will be proven and you will get to go home eventually.
Also, if the state granted you legal ownership of the suppressor and you have all the paperwork to prove it then what's the problem? There are plenty of law-abiding citizens out there that have HUGE gun collections. Again, if you legally own all those guns and a legal silencer happened to be on the one you grabbed, then they can't do squat...
If the silencer is illegal, and the person you shot in self-defense is a relative or someone you know well, THEN you're going to be in deep crap.
Now, is it worth the tactical advantage? Probably not. Is it worth saving you from certain hearing damage? Maybe...
Would I keep a can on a bed-side handgun? Yes..if only I could afford to own one