They were a series of riots from June 3 through June 8, 1943 in Los Angeles, California, involving American servicemen placed in Southern California and young Latino as well as Mexican American city residents.
30S 90E = None of the above. It's in the Indian Ocean (They could have meant 30S 90W. That's in the Pacific Ocean, which is on the list but hasn't been used).
Interstate Commerce Commission. The Interstate Commerce Commission (ICC) was a regulatory agency in the United States created by the Interstate Commerce Act of 1887.