BERLIN (Reuters) - A German court said Monday it had approved the extradition to the United States of two Yemeni citizens suspected of links to the al Qaeda network who were arrested in Frankfurt in January on a U.S. request. The men are Yemeni Muslim cleric Sheikh Mohammed Ali Hassan al-Mouyad and his assistant, Mohammed Moshen Yahya Zayed. U.S. authorities accuse the two of being al Qaeda supporters, but have not linked them directly with the September 11, 2001 hijacked airliner attacks on the United States. U.S. officials accuse Sheikh Mohammed, a preacher at Al Ihsan Mosque, one of the...