"It must be conceded that the military and naval situation in the spring of 1942 was such as to generate a very real fear of invasion of the Pacific Coast, accompanied by fears of sabotage and espionage in that area. The military command was therefore justified in adopting all reasonable means necessary to combat these dangers. In adjudging the military action taken in light of the then apparent dangers, we must not erect too high or too meticulous standards; it is necessary only that the action have some reasonable relation to the removal of the dangers of invasion, sabotage and espionage. But the exclusion, either temporarily or permanently, of all persons with Japanese blood in their veins has no such reasonable relation. And that relation is lacking because the exclusion order necessarily must rely for its reasonableness upon the assumption that all persons of Japanese ancestry may have a dangerous tendency to commit sabotage and espionage and to aid our Japanese enemy in other ways. It is difficult to believe that reason, logic or experience could be marshalled in support of such an assumption."