El Salvador's military command has long been suspected of shielding officers from charges of involvement in the death squads that carried out tens of thousands of kidnapings and killings. But the code of silence has broken down since police cracked a ring that kidnaped wealthy people and held them for ransom. Among those under arrest is Rodolfo Lopez Sibrian, a former national guard lieutenant who was accused, but never convicted, of ordering the execution of two American landreform specialists and a Salvadoran colleague in 1981.
At a military court hearing last week, Sibrian and another defendant implicated two army colonels and...