Mosab Hassan Yousef defected to Israel in 1997 and worked as a double agent until he fled to the United States in 2007. He has remained an outspoken critic of Hamas and its supporters.Mosab Hassan Yousef defected to Israel in 1997 and worked as a double agent until he fled to the United States in 2007. He has remained an outspoken critic of Hamas and its supporters.Read Moredeb2c40e-ac48-5da3-b721-97b5f29097a8, fox-news/world/world-regions/israel, fox-news/world/terrorism, fox-news/topic/anti-semitism, fox-news/world/conflicts, fnc, fox-news/world, article, Fox News, Peter Aitken, Julia BonavitaFOX News : World