We now know that Cheney drank not just at lunch, but after the incident. So, it's time for a flashback to the "NBC Investigative Unit" report "Cheney's hunting host lobbied White House". For a brief fleeting moment it contained this paragraph:
[Ranch owner Katharine Armstrong] also told NBC News that she does not believe alcohol was involved in the accident. She says she believes no one that day was drinking, although she says there may have been beer available during a picnic lunch that preceded the incident. "There may be a beer or two in there," she said, "but remember not everyone in the party was shooting."
That paragraph was removed...
Apparently she said this during a telephone interview. I can think of absolutely no reason to remove that paragraph, since the article was probably reviewed by an editor who listened to the (presumably taped) interview before it was published to the web.
There's a screengrab of the original version here, and more links here. The DUmmies discovered this.