Well, The Times is now going to layer its corrections:

Starting tomorrow, corrections on Page A2 will be published in two groupings. Substantive errors — those that have materially affected the reader’s understanding of a news development — will be addressed under the traditional heading, “Corrections.” Narrower errors — those involving spelling, for example, or dates and historical references — will be corrected under a second heading, “For the Record.”

There's more, too. There will still be "Editor's Notes," which address "lapses in fairness." The paper doesn't say, but it's unlikely any changes will be made to the paper's corrections policy for opinion columnists.