This is hot off the presses - Judicial Watch has obtained NASA emails relating to the furore over Steve McIntyre's discovery of an error in their data back in 2007. The revelation of the so-called "Y2K error" lead to a reassessment of climate history in the US, with 1934 being promoted above 20051998 as the hottest year on record.
Judicial Watch article here. The emails are here. Enjoy.