"A former university professor who pleaded guilty to conspiring to aid terrorists has refused for a third time to testify before a grand jury investigating Muslim charities and businesses in northern Virginia. Former University of South Florida professor Sami al-Arian's refusal to testify Thursday at U.S. District Court in Alexandria sets the stage for prosecutors to bring contempt of court charges against him for a third time," the AP writes. "Prosecutors have alleged that al-Arian was a leader of the Palestinian Islamic Jihad, which the U.S. calls a terrorist organization. But his 2005 trial ended in an acquittal on some counts and a hung jury on others. In 2006, he pleaded guilty to a lesser count of conspiring to providing services to members of a terrorist group, specifically by helping a family member with links to the group obtain immigration benefits and by lying to a reporter about another individual's ties to the group."

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