This week on Talk of the Neighborhoods, host Joe Heisler first talks with Mayor Walsh's Chief of Housing Sheila Dillon about the city's ambitious plans to increase the number of affordable housing units. Then, on the second half, Joe talks with Caroline Angel Burke, Vice President for Education, Visitor Experience and Collections for the Edward M. Kennedy Institute in Dorchester, about the institute's role in educating people about the late U.S. Senator's legacy and the inner workings of the world's "most deliberative (legislative) body."