Follow-up on the matter noted in my post yesterday, listed two items above:
Today's Tribune has a much more detailed story on the matter. Those who wish to follow this in the future may prefer to check the Chicago Tribune website, whose coverage may be particularly complete simply because the US options-trading industry is centered in Chicago.
http://chicagotribune.com/news/nationworld/chi-0109230424sep23.story?coll=chi%2Dnewsnationworld%2Dhed