The sound of silence: Four more Brooklyn NYPD precincts pull plug on radio frequencies in encryption effort

Police radios in four more Brooklyn precincts went dark on the morning of Sept. 11, as the NYPD seemingly took another step in its controversial plan to encrypt all communications from the public.

The effort began in July with four northern Brooklyn precincts going dark. The latest round of encryption enacted Monday, the 22nd anniversary of the 9/11 terrorist attacks, included the 75th Precinct in East New York, Brooklyn, referred to by some as New York’s “Killing Ground” for having high crime and murder rates; the 77th and 79th Precincts, which encompass  Crown Heights and Bedford Stuyvesant; and the 73rd Precinct that include Brownsville, East Flatbush and East New York.