Both FIA and IB were empowered during the government and the scope of their operation was expanded during 1970s . Though ISI did lost its importance in 1970s , the ISI valued its importance in 1980s after successfully running the military intelligence program against the Soviet Union . Sensing the nature of competition , President Zia-ul-Haq consolidated the intelligence services after the ISI getting training from the CIA in 1980s , and subsequently improved its methods of intelligence . After the September 11 , 2001 , the attacks in the United States history , the FBI launched the largest investigation in its history and soon determined that the hijackers were linked to al-Qaeda , led by Saudi exiled Osama bin Laden . Same as just after 9/11 attacks in the United States , the FIA gained credibility over the ISI in the United States . The FIA and ISI were also mentioned in '' The Path to 9/11 '' television series
9/11 attacks
September 11 attacks
Pakistani intelligence community