So, by now you've heard all about how Rush Limbaugh is convinced that global warming is a farce because NASA slightly corrected old temperature data.
Well...It turns out that it's less one thousandth of a degree(C), so yeah, NOT A BIG F'ING DEAL.
Here is the graph (stolen from Climate Progress). As you can see (well, not see) the old and new lines are identical which is why the "old" line is covered up by the "new" line.