Today at Mass General Hospital, clinicians joined state and city officials to announce a new Center for Gun Violence Prevention. The hospital will commit over one million dollars through the next three years to address what they see as a national public health epidemic. Interview with John McColgan, City Archivist. About the new Irish Famine Memorial at Deer Island. Interview with Bill Lichtenstein, Director of the documentary, "WBCN and the American Revolution." Highlights from this weekend's Boston Pride Parade.