Why use progressive instead of liberal?  Why bring back the word liberal?  Eric Alterman explains here in his bloggingheads appearance with National Review’s Byron York. 

Most peculiar claim (for me) was Alterman’s remark that liberalism is largely “pragmatic” and conservatism is “much more ideological.”  York raised no obvious objections to this characterisation.  Does this make any sense according to a traditional conservative understanding of ideology and Kirk’s description of conservatism as “anti-ideology”?  Discuss.