They put Asian America on the map, tracing histories along race, culture, capitalist divides. Prof. Ron Takaki, activist Richard Aoki, historian Him Mark Lai, writer Al Robles recently passed away. How will their legacy be carried on? We talk with Harvey Dong of East Wind Books and Peter Swing of the Asia Law Caucus. Also, as journalists Laura Ling and Euna Lee go on trial in North Korea, hear about what is driving the North as we talk with Paul Liem of Korea Policy Insitute