What cause-and-effect relationship does Dr. Herter's letter try to establish? Japanese Americans in Hawall have kept their language and customs; therefore, they are more loyal to Japan than to the United States.
Japanese Americans in Hawall have become Americanized; therefore, they can be trusted to spy for the United States.
O Japanese Americans cannot be trusted because they have openly sworn their support for the Japanese emperor.
O Censorship of the press in Hawali has resulted in Japanese Americans being unable to express their opinions.