By Joseph Ax NEW YORK (Reuters) - An Algerian immigrant to the United States convicted under a rarely invoked New York state terror statute of plotting to blow up synagogues and churches in Manhattan was sentenced on Friday to 10 years in prison. Ahmed Ferhani, 27, pleaded guilty in December to conspiracy as a crime of terrorism, related weapons charges and other crimes. He admitted to conspiring with another man, Mohamed Mamdouh, to bomb synagogues in retaliation for what he viewed as Jewish mistreatment of Muslims throughout the world. ...