The idea that free-market proponents in the 70s and 80s were "radical" is at best a lie, and at worst revisionist history.
http://www.nybooks.com/articles/archives/2007/feb/15/who-was...
The Krugman haters should find some nice balance in the above essay after Friedman's death where Krugman praises Friedman's economic chops but laments his looser standards when he gets too political.
By predicting the phenomenon of stagflation in advance, Friedman and Phelps achieved one of the great triumphs of postwar economics. This triumph, more than anything else, confirmed Milton Friedman’s status as a great economist’s economist, whatever one may think of his other roles.
It's certainly not a strong enough statement to be a lie.
http://econlog.econlib.org/archives/2015/03/ways_of_thinkin....
http://econlog.econlib.org/archives/2015/03/krugmans_danger....