The offices of Houston's "Space City!" were bombed and its windows repeatedly shot out; similar drive-by shootings, firebombings, break-ins and trashings were carried out on the offices of many underground papers around the country, fortunately without causing any fatalities. In Houston as in many other cities the attackers, never identified, were suspected of being off-duty military or police personnel, or members of the Ku Klux Klan or Minuteman organizations. Some of the most violent attacks were carried out against the underground press in San Diego. In 1976 the "San Diego Union" reported that the attacks in 1971 and 1972 had been carried out by a right-wing paramilitary group calling itself the Secret Army Organization, which had ties to the local office of the FBI.