In 1999, GISS US temperatures showed no warming.
The graph below compares 2012 GHCN HCN daily temperature anomalies from 1895-1999 to the GISS US temperatures 1999 version. The correlation was pretty good.
The next graph shows the same 1895-1999 data, except that it uses 2012 GISS US temperatures, instead of the 1999 version. Note that after adjustments, recent GISS US temperatures have almost no correlation with thermometers. The pattern is now a random shotgun blast, indicating that current GISS is a complete fraud.