Also MIT collects a large amount of data using online prices to determine inflation rates http://bpp.mit.edu/usa/
So the inflation calculations might indeed be inaccurate but there isn't much solid data to back it up.
I personally find it better to focus on issues that have lots of data such as the debt crisis [1], the growing costs of SS and medicare and the harmful effects of industry/government collusion [2] which are all very real and can be proven.
