> The D.A.’s talk at the law school was a dutiful recitation of triumphs, such as smashing Iranian money-laundering rings. Vance left unspoken not only the stop-and-frisk debacle that recently led the Bronx County D.A. to cease prosecuting most stop-and-frisk arrests, but also Vance’s complicity in two other ongoing New York Police Department scandals: the department’s whitewashing of traffic crimes against pedestrians and cyclists, and its intimidation, sometimes brutal, of peaceful dissent.