The federal government's roundup Tuesday of seven Middle Eastern men on charges of funding the terrorist group Hamas yielded an unexpected disclosure: a link between Dallas City Hall and Hamas’ top leader in Israel’s occupied territories. North Texas resident Mufid Abdulquader is a city of Dallas engineer who was among the men charged Tuesday in a 42-count indictment for allegedly using the Richardson-based Holy Land Foundation to funnel millions of dollars to Hamas terrorist operations. But Abdulquader, a Palestinian and naturalized U.S. citizen, has a connection to Hamas shared by none of the others. Abdulquader’s Syrian-based half brother is a...