TOKYO -- The sites of two devastating attacks during World War II, Pearl Harbor in 1941 and Hiroshima in 1945, became "sister parks" on Thursday.
Move angers some A-bomb survivors who say U.S. attack was unjustifiable

The USS Arizona memorial at Pearl Harbor in Honolulu, Hawaii, left, and the memorial cenotaph at the Peace Memorial Park of Hiroshima. (Source photos by Reuters and AP)
TOKYO -- The sites of two devastating attacks during World War II, Pearl Harbor in 1941 and Hiroshima in 1945, became "sister parks" on Thursday.