Mumbai, July 11 -- A privately operated BEST bus went out of control and rammed into 14 vehicles while negotiating a turn on the congested SV Road near Andheri subway on Friday. Four people were injured in the incident. While the bus driver, Sahil Sawant, 30, claimed that the brakes had failed, the police and the transport undertaking said they were investigating whether a mechanical defect, human error or another factor caused the crash. BEST's wet-lease model has come under scrutiny following a series of recent crashes. P3...