censorship:
Suppression by authority of material
considered immoral, heretical, subversive,
libellous, damaging to state security, or
otherwise offensive. It is generally more
stringent under totalitarian or strongly
religious regimes and in wartime.
to censor:
In Psychology, the psychic
function that prevents unacceptable
unconscious impulses from reaching the
conscious mind. This function leads to
repression of intolerable ideas, memories,
or impulses.