They are in fact basically never used for clandestine violence in places where they are legal (which is most of the US). On the other hand, there is a clear le

They are in fact basically never used for clandestine violence in places where they are legal (which is most of the US). On the other hand, there is a clear legitimate use of them: protection of hearing when you are shooting your own guns for fun, which is a legitimate activity that millions of Americans engage in every day. Banning suppressors is kinda like as if European countries today banned possession of English longbows. These very much can be effectively used for violence, as Agincourt has shown. However, nowadays, they emphatically are not used for that, and if modern European government loudly declared a war on longbows, and went after the owners, one would think that they went crazy: shooting longbows is a pastime of medieval reenacters, not criminals.