Yeah, it's not like the Japanese in WWII were rounded up based on the census info collected only a year or two earlier, or anything...
My research shows that in 1943, census info re Japanese Americans was released per request from President Roosevelt. The allegation that it was used to "round up" the Japanese comes from Michelle Bachmann. If you will recall, the Japanese bombed Pearl Harbor in 1941, killing thousands of Americans, and they were our enemies during WWII.
Since then (67 yrs ago), the no other breaches of census confidentiality have been found. If I may ask you, did you refuse to complete your census form on the basis of the 1943 disclosure? If so, was that allowed by the U.S. Census Bureau? I'm just wondering here how that would work.
As for sympathy towards Japanese during WWII, you will see on the anniversary of the bombing of Hiroshima and Nagasaki, that when photos are posted on FR of the devastation, there are those here who gloat over the destruction. I am not one of those. I'm only pointing it out because using Japanese-Americans during WWII as a sympathetic group is in direct contrast with the glee over using the A-bomb on Japanese civilians that I've seen from conservatives.