A joint team of US Department of Justice and the FBI briefed Indian investigators on American terror suspect David Headley's alleged role in last year's Mumbai terror attacks. The team held discussions with the officials of Home Ministry and National Investigating Agency, which is probing in India, the role of Headley and his accomplice Tahawwur Hussain Rana, a Paksitani-Canadian. Both of them were arrested by FBI in October this year for plotting terror attacks in India and Denmark.