Then along came an announcement by Mr Watts last Sunday that he had documented, and had ready for publication, the proof that the U.S. temperature record had been diddled. In particular his new analysis demonstrated that the reported 1979-2008 U.S. temperature trends are spuriously doubled, with 92% of that over-estimation resulting from erroneous NOAA adjustments of well-sited stations upward.
Fallacy: conspiracy theory