In Argentina, Capt. Pedro Giachino has long been remembered as a hero. He was the first to die in his country's failed invasion of the Falkland Islands, which took place 30 years ago on Monday.
Recently, though, human rights groups discovered that the iconic figure of sacrifice in the war with Britain had been a henchman in Argentina's brutal military dictatorship.
Carlos Diaz, a leading human rights activist in the city of Mar del Plata, walks gingerly into the city council, a dimly lighted chamber that is a sort of microcosm of Argentina's once-violent past.