By now, I think everyone has fully catalogued the multitude of ways in which Katrina will change everything.
Ornery contrarian that I am, I’ve become pretty convinced that Katrina will change nothing
(except, well, New Orleans, Gulfport, etc.) in the long term.
That said, the strongest candidate for Katrina Makeover so far has been: The media.
The rise of a “new,” “adversarial” media is the most viral meta-meme making the rounds.
I predict it’ll be dead before New Orleans is dry. I’ll explain why, but first, a quick survey:

New York magazine: “In many ways, [Anderson] Cooper and [Brian] Williams defined a fork in the road for the future of broadcast journalism.”

The New York Times (9/5/05): “CNN…and National Public Radio…both found their voices amidst the chaos.”

The New York Times (“Reporters Turn From Deference To Outrage” 9/5/05): ”…it is clear that television is having a major mood swing.”

USA Today “Katrina Rekindles Adversarial Media” (9/5/05): “Reporters covering Hurricane Katrina on the scene showed their human — and often angry and frustrated — face as they questioned the slow response over the weekend…
“Says Fordham University communications professor Paul Levinson, ‘The media rose to the occasion, shone their light on the desolation and the needy, and kept it focused there until the cavalry finally began to arrive.’

”…some observers say that Katrina’s media legacy may be a return to a post-Watergate-like era of tougher scrutiny of the federal government and public policy issues.

”’If any good comes from the catastrophe, it will be that it signaled the beginning of the media’s reassertion of aggressive, in-your-face reporting, in which it confronts government wrongdoing, rather than just swallowing the government’s public-relations handouts,’ Levinson says.”

USA Today (also Peter Johnson, but later in the day): ”…experts and journalists predict that mounting questions about U.S. government preparation, policies and response to Hurricane Katrina will result in intense news coverage for months.
“Katrina ‘doesn’t just have legs, it has tentacles,’ says Bob Lichter of the Center for Media and Public Affairs. ‘Its implications reach into hot-button controversies involving race, poverty, economics and partisan politics. The reach of this story will make the O.J. Simpson case look like a news brief.’”

Milwaukee Journal-Sentinel (9/6/05): ”…reporters and anchors have been asking tough questions in combative and even angry tones.”

SF Indymedia (9/6/05): “Not for decades has there been such merciless questioning of the president and his administration by the U.S. media.”

Reuters (9/7/05): “American TV reporters and newscasters are covering Hurricane Katrina and problem-plagued relief efforts with a sense of outrage and antagonism many thought had long gone out of fashion in broadcast journalism.”

Chicago Tribune “A Cronkite Moment in the Gulf Story” (9/9/05): ”…we might be witnessing something no one thought was possible in this age. This may be a Cronkite Moment.”

Boston Phoenix (9/9/05): ”…it took a hurricane to wake up the press, raise the issue of race and class, and redefine the political landscape.
“Hurricane Katrina did not simply destroy physical infrastructure, social fabric, and countless lives on America’s Gulf Coast. It blew away the ground rules that had defined post-9/11 American politics and protected the most polarizing administration in recent history…
“All the elements that George W. Bush and Karl Rove had exploited for political gain — a timid and kowtowing mainstream media, a deafening silence about America’s growing underclass, the fear that criticizing the White House in the era of Al Qaeda was tantamount to treason, and Bush’s can-do, cowboy image — were shattered by the same winds and rains that savaged casinos in Biloxi and homes in Jefferson Parish.”

USA Today (9/11/05): “ABC News executive Paul Slavin [says] ‘Katrina has uncovered grave weaknesses in this country’s ability to handle a crisis, and we need to make sure we hold officials accountable and investigate as best we can both what happened and what might happen.’”

Salon even posted a “Reporters Gone Wild” compilation reel.

So, what does the post-Katrina news media look like?
In condensed form, the storyline goes like this: Their “timid and kowtowing” nature “shattered” by Katrina,
the “rekindled” media are “asking tough questions,”
shining “their light on the desolation and the needy”
with “merciless questioning of the president and his administration”
in “a return to a post-Watergate-like era of tougher scrutiny of the federal government and public policy issues”
“with a sense of outrage and antagonism many thought had long gone out of fashion” and “aggressive, in-your-face reporting,
in which it confronts government wrongdoing;” “something no one thought was possible in this age…a Cronkite moment,” complete with “reporters gone wild.”

Wow. That’s amazing.
And indicative of a grave misunderstanding of some elemental forces that shape news media’s editorial judgment.
This mistake about the media will, very quickly, come to be seen just as ironically as we now consider the post-9/11 obituaries for irony itself.
Katrina became a media storm for a very simple reason:
Its sheer magnitude overwhelmed the fundamentally flawed media levee known by the misnomer of “objectivity.”
My personal theory is that Watergate, rather than inspiring investigative journalism, inspired a generation of people who became journalists not to challenge power, but to gain the fame that comes with journalism’s podium.
Look past the headlines of the stories I’ve posted above, and you’ll see in them the seeds for the return of old-time, useless “journalism.”

Here are a couple important points SF Indymedia made, though I think the author missed the meaning of the former:

“Never before, say some observers, have US reporters been so emotionally involved in a story to the point of being enraged.”
“They are not just telling a story, they have become part of it.”

”’Has Katrina saved the US media,?’ asked BBC reporter Matt Wells who sees the shift in tone as a potentially historic development.
“A number of US journalists who cover federal politics, especially television presenters, had become part of the political establishment, says Wells.
”’They live in the same suburbs, go to the same parties. Their television companies are owned by large conglomerates who contribute to election campaigns.’
“It’s a ‘perfect recipe’ for fearful, self-censoring reportage, he says, but thinks ‘since last week, that’s all over’.”

No, it’s not. And the reason is that after Katrina, the same reporters who were emotionally engaged, and outraged, will return to their desks and their bureaus. And their suburbs. And their parties.

The emotional root of The New Adversarialism is just one reason it will be short-lived; such high-pitched feelings can’t and won’t last (and shouldn’t: Journalists who really cared about Katrina’s victims would have wept less afterward and done more boring, public-policy stories beforehand). Nikki Finke in the LA Weekly attributes the death of The New Adversarialism to corporate politics. But even more profoundly at work here is the dynamic of how the media engage not with emotion but with the nature of reality itself.
Yes, this was the first time many of these reporters and journalists saw such conditions on U.S. soil, but the reason that translated into outrage had to do not with emotion, but fact and objectivity.
This was the first story in which a critical mass of high-level, decision-making media were on the ground to witness X and have government officials tell them to their face ”-X.”