It started out as an investigation into U.S.-based financing of Hamas terrorist operations, which was bad enough. But as federal investigators developed a matrix of suspects, they discovered a possible 9/11 connection. The Holy Land Foundation terror case has already touched the top Muslim lobby in Washington -- the Council on American-Islamic Relations -- which U.S. prosecutors recently named as an unindicted co-conspirator. A former senior CAIR official is among five indicted figures in the major terror-funding case. It turns out he is related by marriage to a key suspect in the conspiracy -- a radical Muslim cleric and activist...