The Pakistani government has given the nod to the Federal Bureau of Investigation (FBI), the U.S. investigative agency, to grill the suspected terrorists of Mumbai attacks, an Indian newspaper reported. It said that the FBI team will interrogate the suspects within Pakistan however an other FBI team is questioning Ajmal Kasab and other suspects in India. Pakistan agreed to take the step after the killing of six US citizens including two FBI officials in Mumbai attacks, it said, adding that India and US will share the probe outcome owing to their joint anti-terror mechanism.