Eric Alterman chastises the media for buying what Breitbart has to sell them. Instead of eating crow and repenting for circulating the edited Sherrod tapes, they apologized for Breitbart and equated his lies with the Journolist controversy. Alterman is pissed.

And the MSM machers? Well, they can't help but notice that
they got taken this time, but they prefer to chalk it up to "ideology."
"There's been this proliferation of partisan media—whether it's MSNBC
and Fox at night, or it's Breitbart on the right or Huffington Post on
the left," complains Politico executive editor James VandeHei, and it makes honest folk like MSM reporters "overreact." Writing with Politico
editor in chief John Harris, VandeHei pronounces the dawning of an "Age
of Rage," equating Breitbart and company's perversion of the truth with
the fact that some liberal journalists and academics participated in
occasionally less than polite discussions about conservatives (and one
another). The private discussions of this listserv, called
"Journolist"—discussed in my previous column—were either hacked by or
leaked to Tucker Carlson's right-wing website, The Daily Caller, and, as
with the Sherrod tape, edited for the purposes of deception and false
accusation. In the careless reasoning of the Politico honchos,
these discussions deserved equation with Breitbart's nefarious
techniques because both "featured sharp personal attacks against
political opponents. Both revolved around indignant claims from people
claiming to be victims of bias and the corrupt ideological agendas of
their opponents—all the while stoking and profiting from the bias and
conspiratorial instincts of partisans on their own side." As a result,
they worry, "Responsible people in power and in the mainstream media are
only beginning to grapple with this new environment—in which facts
hardly matter except as they can be used as weapon or shield in a
nonstop ideological war."

Instead, of demanding facts, the mainstream media is too cowed by charges of being liberal to check conservative hacks, like Breitbart. Excellent article. 

Get ready for a big lawsuit, Mr. Breitbart.