Because it's a right to own a gun in the US doesn't mean it's right. Have you ever wondered how other countries are surviving without everyone having one.

Yes, I know that if someone really wants to use a gun he/she will get one somehow, but it will be a lot more difficult, and the person might have had time to cool off before he kill someone.

Btw, is it allowed in all States in the US? And how about Canada?