It should be noted, to begin with, that all legal restrictions which curtail the civil rights of a single racial group are immediately suspect. That is not to say that all such restrictions are unconstitutional. It is to say that courts must subject them to the most rigid scrutiny. Pressing public necessity may sometimes justify the existence of such restrictions; racial antagonism never can. . . .
The 1942 Act was attacked in the Hirabayashi case as an unconstitutional delegation of power; it was contended that the curfew order and other orders on which it rested were beyond the war powers of the Congress, the military authorities and of the President, as Commander in Chief of the Army; and finally that to apply the curfew order against none but citizens of Japanese ancestry amounted to a constitutionally prohibited discrimination solely on account of race. To these questions, we gave the serious consideration which their importance justified. We upheld the curfew order as an exercise of the power of the government to take steps necessary to prevent espionage and sabotage in an area threatened by Japanese attack.
In the light of the principles we announced in the Hirabayashi case, we are unable to conclude that it was beyond the war power of Congress and the Executive to exclude those of Japanese ancestry from the West Coast war area at the time they did. True, exclusion from the area in which one's home is located is a far greater deprivation than constant confinement to the home from 8 P.M. to 6 A.M. Nothing short of apprehension by the proper military authorities of the gravest imminent danger to the public safety can constitutionally justify either. But exclusion from a threatened area, no less than curfew, has a definite and close relationship to the prevention of espionage and sabotage. The military authorities, charged with the primary responsibility of deU+0AD fending our shores, concluded that curfew provided inadequate protection and ordered exclusion. They did so, as pointed out in our Hirabayashi opinion, in accordance with Congressional authority to the military to say who should, and who should not, remain in the threatened areas. . . .
Like curfew, exclusion of those of Japanese origin was deemed necessary because of the presence of an unascertained number of disloyal members of the group, most of whom we have no doubt were loyal to this country. It was because we could not reject the finding of the military authorities that it was impossible to bring about an immediate segregation of the disloyal from the loyal that we sustained the validity of the curfew order as applying to the whole group. In the instant case, temporary exclusion of the entire group was rested by the military on the same ground. The judgment that exclusion of the whole group was for the same reason a military imperative answers the contention that the exclusion was in the nature of group punishment based on antagonism to those of Japanese origin. That there were members of the group who retained loyalties to Japan has been confirmed by investigations made subsequent to the exclusion. Approximately five thousand American citizens of Japanese ancestry refused to swear unqualified allegiance to the United States and to renounce allegiance to the Japanese Emperor, and several thousand evacuees requested repatriation to Japan.
We uphold the exclusion order as of the time it was made and when the petitioner violated it. . . . In doing so, we are not unmindful of the hardships imposed by it upon a large group of American citizens. . . . But hardships are part of war, and war is an aggregation of hardships. All citizens alike, both in and out of uniform, feel the impact