The extraordinary trek of George Takei

The cult icon on a mission to make sure America doesn't forget a shameful legacy. He is well known for his role as Lt. Sulu in Star Trek franchise, as well as plenty of other apparitions in popular TV shows. But having spent close to five years in a Japanese internment camp during World War II, the American actor harbours a troubled past that he wants to make sure can serve as a lesson for generations to come. Karen Heller, from The Washington Post, explores the actors' incredible life journey.