Authorities say they're preventing coup; activists say they're crushing dissent
                                
                                
                                    (Newser) -
                                    Activists say authorities in Saudi Arabia have arrested at least 40 people—including clerics, scholars, and political commentators—in the past week, the  Wall Street Journal  reports. Saudi authorities, who won't name or quantify the arrested, say they were working against the government on behalf of foreign powers, according...