Whatever he was paid as an advance on his book I would advise him to do two things with it. 1) beef of his security and 2) spend it as fast as possible. The quotes attributed to him in this article sound like someone who has been seriously brainwashed. God only knows what was done to him. He is now a pariah throughout the Middle East, the opposite of the shoe throwing Iraqi. Yousef will be lucky if shoes are the only thing that comes his way.
U.S. to defend Syrian rebels with airpower, including from Assad (Reuters)
from the article: Haaretz exclusive: Hamas founder's son worked for Shin Bet for years