Few people willingly return to their old prison, but 92-year-old Sam Mihara did just that, recently returning to the Heart Mountain Relocation Center in rural Wyoming.

"Our family suffered a lot," Mihara told CBS News.

He doesn't want to forget what happened at Heart Mountain. He wants all Americans to remember.

"My father went blind," Mihara said. "But the worst was my grandfather. He died here."

It has been about 80 years since the U.S. defeated Japan in World War II, ending a painful chapter in American history when more than 120,000 Japanese Americans were forced from their homes in 1942 and sent to internment camps.

With the U.S. victory, they were finally freed, with the last internment camp closing in March 1946.

Mihara was 9 years old when Japan bombed Pearl Harbor.

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