Coincidentally, I once worked with a woman who had been the guest of one the internment camps. Interestingly, she called it a net good thing. Said Japanese on the West Coast were too complacent, and we're not really assimilating. Moving away from California was a good step, for those who moved. When FDR made this decision, newspapers were full of reports about real Japanese fanaticism on the battlefield. They would fight to the death, regardless of whether that was rational. Belief that the different races were intrinsically different was ubiquitous, and few doubted that many ethnic Japanese in the U.S. had divided or compromised loyalties. The same was thought of Germans - even people who merely had Germany surnames - who were constantly challenged to prove their American loyalty. The Internet camps were entirely humane, with reports of guards' cruelty (and things of that nature) almost non-existent. The decision of the USSC to overlook, among other things - the 5th and 15th Amendments was largely supported in media and in the pulpit. But oh, FDR was an evil one, wasn't he?