When Avi confesses a botched 1972 Mossad operation to Reed, this is what he's referencing. "Abu Sharif organized, and participated in, many actions against Israel. He lost four fingers, and was left deaf in one ear and blind in one eye, when a bomb exploded in his hands in Beirut, Lebanon, in 1972. The assassination attempt was carried out by Mossad who hid the explosives in the book The Memoirs of Che Guevara, and sent the book to Sharif."