Segments from a terrific Frank Rich column:

Jeff Gannon "worked for a news organization no more real than The Onion.... 'Jeff' was in the real White House, and he did have those exchanges with the real Mr. McClellan and the real Mr. Bush."
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"Jeff Gannon" is now at least the sixth "journalist" (four of whom have been unmasked so far this year) to have been a propagandist on the payroll of either the Bush administration or a barely arms-length ally like Talon News while simultaneously appearing in print or broadcast forums that purport to be real news.
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Even now, we know that the fake news generated by the six known shills is only a small piece of the administration's overall propaganda effort. President Bush wasn't entirely joking when he called the notoriously meek March 6, 2003, White House press conference on the eve of the Iraq invasion "scripted" while it was still going on. (And "Jeff Gannon" apparently wasn't even at that one). Everything is scripted.
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The pre-fab "Ask President Bush" town hall-style meetings held during last year's campaign.... A Pentagon Office of Strategic Influence, intended to provide propagandistic news items, some of them possibly false, to foreign news media was shut down in 2002.... Another Pentagon propaganda arm, the Pentagon Channel, has recently been added as a free channel for American viewers of the Dish Network.
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When the Bush administration isn't using taxpayers' money to buy its own fake news, it does everything it can to shut out and pillory real reporters.
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Conservatives, who supposedly deplore post-modernism, are now welcoming in a brave new world in which it's a given that there can be no empirical reality in news, only the reality you want to hear (or they want you to hear).
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Is the banishment of a real newsman for behaving foolishly at a bloviation conference in Switzerland a more pressing story than that of a fake newsman gaining years of access to the White House (and network TV cameras) under mysterious circumstances?

It always goes back to the same point: just imagine the right-wing if this were Clinton pulling this kind of crap.