Mosab Hassan Yousef is the eldest son of one of the founders of Hamas, Sheik Hassan Yousef, the spiritual leader of the organization on the West Bank.
As a youth, Mosab was arrested by the Israelis for involvement in terrorism.
In prison, he came to realize the true evil of Hamas.
In time, he renounced Islam, chose to become a follower of Jesus, and became a double agent for the Israeli secret services (Shin Bet) working to thwart Hamas terror attacks.
Later, he emigrated to the United States where he wrote a best-selling book, "Son of Hamas," warning about the dangerous of Hamas and telling his own journey out of Radical Islam.
Now, with Hamas engaged in a brutal, deadly war with Israel, Mosab - a remarkably courageous young man - is again speaking out against the radical Islamic terror group of which he used to be a key operative and rising future leader.
Hamas is a "cancer" in the Middle East," Mosab told radio host Mark Levin this week. The terror group does not represent the Palestinian people. "All they care about is conquest….They believe everyone is unclean and they are clean…..They are a radical force that are sending Palestinians to death on a daily basis."
"Hamas does not care about the lives of the Palestinians, does not care about the lives of Israelis, or Americans," Mosab told CNN this past week. "They don't care about their own lives. They consider dying for the sake of their ideology a way of worship."
"Hamas is not seeking coexistence [with Israel]," he noted. "Hamas is seeking conquest and taking over."
He said the goal of Hamas isn't not simply to destroy Israel but to build an Islamic caliphate on the rubble of every country in the region.
His book was turned into a documentary film, "The Green Prince," that recently won an award at the Sundance Film Festival.
It is also being turned into a feature film.