Our top story: Mayor Walsh demands more service on the M-B-T-A. In a letter to the state transportation secretary, Stephanie Pollack, the mayor asked for trains to run more often on the Red Line and the Fairmount-Indigo line. And there was a major disruption this morning for riders on the Blue Line. Around eight o'clock, the line lost electrical power between two stations, Government Center and State Street. Plans for a slave auction memorial at Faneuil Hall are withdrawn, following opposition from a civil rights group. The memorial was planned to spotlight Boston's historic connection to the slave trade, including the role of the hall's donor and namesake, Peter Faneuil. Interview with Priya Lane, Economic Justice Project.