Question

During World War II, the US government sent people of Japanese ancestry to interment camps based on

Answer 1

The fact that they could be Japanese spies leaking information to the Japanese government

and also that the Japanese ambassador was talking about peace while the attack was going on

hope this helps

Answer 2

One of the biggest controversies is how the government picked the "Japanese" to be sent to the camps. They picked everyone who was Asian because you usually can't tell who is Japanese and who is a different type of Asian which got a lot of backlash.