muckraking

from WordNet (r) 3.0 (2006)

muckraking
    n 1: the exposure of scandal (especially about public figures)

from Moby Thesaurus II by Grady Ward, 1.0

21 Moby Thesaurus words for "muckraking":
      attack, blackening, character assassination, defamation,
      defamation of character, defilement, denigration, dirty politics,
      last-minute lie, malicious defamation, mudslinging,
      mudslinging campaign, name-calling, political canard, revilement,
      roorback, smear, smear campaign, smear word, vilification,
      whispering campaign