Australian David Hicks is expected to be arraigned on March 28 at Guantanamo Bay on a charge of "material support for terrorism", a senior Pentagon official said Friday. The charge was formally filed against Hicks on March 1, setting the stage for a war crimes trial this summer at the U.S. naval base on the southeastern tip of Cuba. The Pentagon official speaking on condition of anonymity said the March 28 date was set after prosecutors were granted a one week delay from an earlier arraignment date of March 21. Under the commission rules, Hicks' arraignment is supposed to be held within 30 days of the charges being approved by Judge Susan Crawford, who oversees the military commissions.