Raw NOAA US temperature data shows that US temperatures have been cooling for 90 years, and that 2012 is tied with 1921 at 55.3 degrees.
NOAA then takes this data and massages it into a strong warming trend, with 2012 much hotter than any other year. These government scientists are truly talented people.
They get together with a few of their global warming pals and agree that it is OK to turn a cooling trend into a warming trend, and then make huge press releases intended to alter policy. That is called peer-reviewed settled science.