Speaking at the National Action Network’s Christmas dinner on Thursday, Rev. Al Sharpton said he is working with Cardinal Timothy Dolan on “something big” that will unite New York City in light of recent discord with the NYPD. “I talked with Cardinal Dolan yesterday, and after the first of the year we’re talking about doing something big to bring the city together,” Sharpton said without elaborating. He also called for prayers for the families of NYPD Officers Wenjian Liu and Rafael Ramos, who were killed last week by a gunman who invoked the deaths of Michael Brown and Eric Garner....