Dale Ankney, 72, of Jeannette, Pa., was arrested on Thursday on federal charges for allegedly threatening FBI agents who came to his home to question him about anti-Israel, antisemitic and anti-ICE messages that he posted onlineAccording to an FBI affidavit, investigators reviewed Ankney's public Facebook account and identified many posts advocating violence against U.S. Immigration and Customs Enforcement agents and others. On Jan. 14, he alleg…