Last word on GISS
But the likely truth is that because the anomaly fitted GISS's pre-conceived ideas of runaway global warming so well, nobody thought to double-check the source data. The fact that this data was published with such an obvious error does little for the reputation of GISS (and NASA) - either way, they lose: if there was no quality control on on the published data, then that's unacceptable, and alternatively, if there was quality control which failed to spot an obvious flaw, then that's unacceptable too.
I await with interest the press release that re-issues the corrected data.
See my full post on the sorry tale here.