A man described as a high-ranking operative of the Palestinian militant group Hamas was arrested last week as he videotaped the Chesapeake Bay Bridge in Virginia, and he then was held as a material witness in an unrelated case, authorities said. Ismael Selim Elbarasse of Annandale, Virginia, long suspected by authorities of having financial ties to the Palestinian extremist group, was taken into custody Friday, the U.S. attorney's office in Maryland said Monday. He was held as a material witness in a Chicago terrorism case. Elbarasse made an initial appearance in Baltimore's federal courthouse Monday before U.S. District Magistrate...