Former CIA Director Leon Panetta says that he was cursed at by President Barack Obama’s former chief of staff after he agreed to cooperate with the Senate’s investigation into his agency’s torture tactics in the wake of 9/11.

In passages taken from his new book and published online bythe Intercept, Panetta explains the event that triggered the outburst, which flowed from the former chief of staff Rahm Emanuel, a man notorious for his profanity-laced tirades.