On the eve of the American Bicentennial, bonsai master Masaru Yamaki donated his 350-year-old Japanese white pine to the U.S. National Arboretum. No American knew of its true history until in 2001, when two brothers flew from Japan to find the tree their family had nurtured for generations. The story they shared was nothing short of incredible. The Yamaki pine wasn't just an artistic masterpiece, it was a survivor of nuclear war, and one man's gesture of forgiveness to the country that almost killed him.