US asylum will be granted to the son of a Hamas founder who became a Christian and an Israeli spy after he passes a routine background check, an immigration judge ruled Wednesday.Mosab Hassan Yousef received the news during a 15-minute deportation hearing after a US Department of Homeland Security attorney said the government was dropping its objections.The agency denied Yousef's asylum request in February 2009, arguing that he had been involved in terrorism and was a threat to the United States.Attorney Kerri Calcador gave no explanation for the government's change of heart.