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.
Logical disconnect. American Citizens who happened to be on Japanese heritage vs. Japanese citizens whom we were at war with. It was and remains a very bad idea to lock up American citizens for no other reason than their race.
And I think glee over the A-Bombs is the wrong description. It was, and in my mind, remains a matter of relief that those weapons ended the war and we did not have to endure another battle of Okinawa or Iwo Jima. Many of us Boomers may have never had the opportunity to even be born if that horrible war had dragged on for another year or two. I might add that the Japanese population would have suffered even worse if not for the bombs.
Michelle Bachmann did make that allegation, however it was in fact accurate.
See for instance this article that appeared in the New York Times in 2000: http://www.seattlepi.com/national/cens17.shtml
Then in 2007, new documents released by the government showed that the census was involved more than had been previously admitted: http://www.usatoday.com/news/nation/2007-03-30-census-role_N.htm ... quote: The Census Bureau turned over confidential information including names and addresses to help the Justice Department, Secret Service and other agencies identify Japanese-Americans during World War II, according to government documents released today.
Seeing as both of these were found in the first page of a Bing search for "japan census used for internment" and within the first 3 pages of the same search on Google, I would suggest your "research" method is somewhat faulty.