London: The ISI was behind the 26/11 attacks as well as the July 2008 bombing of the Indian embassy in Kabul, the BBC said in a report on the military-run spy agency that does not function "without the authority" of the Pakistan army chief.
In a new two-part series titled 'Secret Pakistan' on BBC two, Bruce Riedel, the CIA officer who served as advisor to US President Barack Obama, said he had informed the then president-elect about 26/11: "Everything pointed back to Pakistan. It was a defining moment.
"I told the President Pakistan was double-dealing us and that the Pakistanis had been double-dealing the United States and its allies for years and years, and they were probably going to continue to do so."
Riedel pointed out that "this (the attacks) had the signature of Lashkar-e-Taiba all over it, from the very moment the attacks began. "And once you link it back to Lashkar-e-Taiba, you link it back to the Pakistani intelligence service, the ISI."
The second part of the programme, aired on Wednesday night also revealed the "CIA later received intelligence that said the ISI were directly involved in training the Mumbai gunmen".
About the car-laden explosives that went off at the Indian embassy in Kabul that killed 58 people and injured 141, Mike Waltz, who worked in the US vice president's office while George Bush was still president, said: "Through information and a series of events (not to mention preceding intelligence intercepts) it became pretty clear the Pakistanis were behind the (Jalaluddin) Haqqani network, which was behind the bombing."
He then damningly concluded: "The question was how high in the Pakistani state this went. And the answer was pretty high."