I've been busy having a wisdom tooth removed (I know, you didn't think I had that much wisdom to begin with), so I'm going to defer to fellow Minnesotan Veritatis Splendor's coverage of Archbishop Flynn's decision to deny communion to Rainbow Sash wearers.
Read here, here and here.
Also, Amy has a post on it here, with interesting comments - amazing how many angles there are to this story. Almost as many as the hole where my tooth used to be . . .
UPDATE: More perspective on this from Roman Catholic Blog and Some Have Hats.