They were there against the civil right worker's murders. While the black population at the time was allowed to vote, in the Southern states they were withheld from voting by all sorts of idiotic reasons.
The president of UK is Theresa May.
The Korematsu v. United States case justified the internment of Japanese-American citizens during World War II.
After the bombing of Pearl Harbor by the Japanese military, the United States officially entered World War II. Along with this, President Franklin D. Roosevelt issued Executive Order 9066. This resulted in the forced removal of thousands of Japanese-American citizens from their homes and into internment camps. Korematsu was one of these individuals. He filed charges against the government, stating that being forced into an internment camp violated his constitutional rights. However, the Supreme Court ruled in favor of the government.