This week's history podcast showcases three unrelated but timely radio features. In light of the nuclear crisis in Japan, Brigid McCarthy reminds us what happened at Chernobyl in 1986. Gerry Hadden introduces us to a Berber hero in Morocco and explains where he fits in the contemporary political landscape. And Jason Margolis retells the story of the Triangle Shirtwaist Factory Fire a century ago and explains why it's still relevant today.