I think NS clothing is sick and all and I am definitely thinking of getting some gear. However, wearing it on the streets can be kind of sketchy where I live up in Canada! For those of you that live here you probably know about 'Native Syndicate' or NS. Seems like a way to get shanked, I'll stick to wearing it on the hill and not the streets!
You'll be fine as long as you aren't wearing their gang colours (black and white) and if you don't go looking for trouble. Aboriginal gang violence rarely affects anyone outside those already involved.
If you are stupid (wearing a tall white/black NS tee in the ghetto in Regina or Winnipeg) chances are you might find yourself in trouble.