Mosab Hassan Yousef (Arabic: مصعب حسن يوسف; born 5 May 1978), also called The Green Prince, is a Palestinian ex-militant who defected to Israel in 1997, thereafter working as an undercover agent for the Shin Bet until he moved to the United States in 2007. His father is Sheikh Hassan Yousef, a co-founder of Hamas. The Shin Bet considered Yousef to be Israel's most valuable source within the Hamas leadership: the information he supplied allowed Israel to successfully thwart dozens of Palestinian suicide attacks and prevent the assassinations of many Israelis; exposed numerous Hamas cells; and assisted Israeli authorities in hunting down Palestinian militants. His efforts also culminated in the incarceration of his father, who had served as a leading figure for Hamas operations from the West Bank. In March 2010, Yousef published his autobiography, titled Son of Hamas.In 1999, Yousef converted to Christianity from Islam, but did not disclose this fact to the public until 2008, triggering fears that his family members in Ramallah would become targets for religious persecution. In 2007, he left the West Bank and moved to the United States where he applied for political asylum and had his request granted by American authorities in 2010 following Shin Bet handler Gonen Ben Itzhak testifying on his behalf. On 23 October 2023, Yousef stated that he holds United States citizenship while speaking to American journalist Jake Tapper on a televised interview; the statement was not disputed on air. Source: Wikipedia (en)