<prompt> Translate the following text to EnglishSheria hiyo ilitumiwa na serikali ya Marekani wakati wa Vita Baridi ya Ulimwengu ili kuwazuia waandishi na wasomi wa upande wa kushoto.  <response>: This threatens to become a modern version of the McCarran-Walter Act, which was used during the Cold War to exclude lefty writers and intellectuals. 