"So if the White House wants to minimize opportunities for fresh speculation about how the Libby case is part of some broader conspiracy, the president should act now [and pardon Libby]."
Riiiight, that'll dampen "speculation".
Kinsley's essay is very smart, although does he really want an answer to this question:
As for Democrats and liberals, I feel as vindictive as any other. But ask yourself: if, a couple of years from now, Dick Cheney is going around giving $75,000 speeches and George W Bush is accepting honorary degrees and planning his presidential library, will you feel better or worse that some guy named Scooter Libby is languishing behind bars?