Downtown Manhattan residents have heard enough from honking cabs, and one Community Board is asking the Taxi & Limousine Commission to do something about the racket. Community Board 3, which represents the area of Manhattan containing the East Village, Lower East Side, and Chinatown, voted this week to formally request that the T&LC require devices to be installed in cabs that will visually identify them as horn abusers. Currently, police have to audibly witness a......