I personally don't own a gun, but I believe in the right to own one..... Especially in regards to keeping one in a home for protection. More specifically I think about single women and/or children in the house, I think men are generally more capable of protecting themselves in lesss violent ways. If someone were attacking my child (I don't have any, this is hypothetical) I wouldn't hesitate to shoot them if I had a gun. If they were stealing something and that's all they were doing, I would just leave well enough alone. If another country wants to adopt the same, then OK.... If they want to use that as an excuse to terrorize (and I am not assuming everyone does) then I think other countries have a right to step in for the sake of civility (as Dan-Cat put it). If we as Americans got out of hand with our guns, then sure measures needto be taken to change that, but I think those "getting out of hand" with guns are appropriately dealt with through the justic system, and laws are set up accordingly (by state). Though I know our justice system isn't perfect, but whose is. Anything man-made (including government) will always be flawed.
EDIT: I am not trained to use a gun, so wouldn't feel comfortable with one, but I have friends who have them.