PHILADELPHIA (AP) - Federal agents raided a mosque and two homes in Philadelphia on Thursday and took a Muslim cleric into custody on immigration charges, authorities and witnesses said. Internal Revenue Service agents executed a search warrant at the Ansaar Allah Islamic Society and an adjacent home in the city's Bridesburg section, plus a third home in Northeast Philadelphia, according to IRS spokesman Skip Bedics. No one was arrested on criminal charges, but immigration authorities detained Mohamed Ghorab, an Egyptian who is the imam at the small mosque, which is housed inside a cinderblock garage. FBI agents were also on...