Equivalation may not be a real word. But it's a real problem — quite possibly the single biggest problem in our national media and discourse.

Let's define it thusly:

1. The knee-jerk assumption that competing sides, especially political parties, are equally extreme, equally guilty, etc.

This approach minimizes public outrage when one side has blatantly or repeatedly misbehaved. It is beneficial not only to wrongdoers and their supporters, but also to media outlets that thrive on continued argument, rather than on problem resolution.

2. Treating a dubious position as arguably equivalent to a legitimate one.

Dignifying questionable claims and disreputable agendas provides sensational fodder for an increasingly entertainment-focused news media. It also brings those claims and agendas within striking distance of acceptability.

A good example of the former is Joe Klein's comparing the Daily Kos blog to right-wing shock-jock Rush Limbaugh, after Limbaugh mocked Michael J. Fox's physical impairment.