It is a little-known fact that 3,000 civilian U.S. citizens were in Hiroshima at the time of the bombing—about the same number as were killed in 9/11. Most were women and children, and history has nearly succeeded in erasing them. They are rarely mentioned because nearly all of them were either wholly or partly ethnically Japanese. They were wives and children of Japanese-Americans who had gone to visit relatives and then been trapped by the war.