WASHINGTON, April 17 /U.S. Newswire/ -- Former University of South Florida Professor Sami Al-Arian has pleaded guilty to a charge of conspiring to provide services to the Palestinian Islamic Jihad (PIJ), a specially designated terrorist organization, in violation of U.S. law, the Department of Justice announced today. In a closed proceeding before a federal magistrate at U.S. District Court in the Middle District of Florida last week, Al- Arian pleaded guilty to Count Four of the indictment against him -- a charge of conspiracy to make or receive contributions of funds, goods or services to or for the benefit of...