<prompt> Translate the following text to EnglishVyombo vya habari viliwekwa chini ya udhibiti wa serikali, uchaguzi uliokuwa umehakikishwa haukufanyika, na Kamati za Ulinzi wa Mapinduzi CDRs zilianzishwa ili kuwafuatilia wapinzani.  <response>: The media were soon placed under state control, promised elections were never held, and Committees for the Defense of the Revolution CDRs were established to keep tabs on dissenters. 