Patrick and Katherine Stethem have forsaken their quiet life in a Loudoun [Virginia] suburb to call for justice. They don't relish the spotlight. But they'll go there if it will get the job done. The job is to get the U.S. government to use its influence to get Mohammed Ali Hamadi into a U.S. courtroom. To get the Lebanese government to turn Hamadi over. To get Hezbollah to assume the mantle of a legitimate political party. It's been 20 years since Hezbollah terrorists – two on a hijacked plane and two on the ground -- murdered Patrick Stethem's older brother,...