You are equating men women and children  peaceably shopping for gifts for their loved ones on the one hand with, on the other hand, a strapping young man who was shot by a police officer (bizarre conviction currently under appeal) after aggressively and repeatedly threatening passengers and then the driver of a TTC car while brandishing a 12cm-bladed knife. Hmm... 
BTW, re the detention of the Japanese during WWII: I'm not sure why we never hear about the fact that a German family -- note, yes the entire family, including the 2 children -- at the request of the Japanese (who wanted agents who were not *visible* minorities) were able to work with an agent at the Japanese consulate in Hawaii to communicate to the Japanese military the composition of the fleet moored in Pearl Harbor in the days immediately preceding the attack... (I'd have to look up the names, but it is public info, they were successfully prosecuted.)