By now you've heard about the ChoicePoint affair. ChoicePoint buys and sells personal information. Names, social security numbers, addresses, credit records, you get the idea. Criminals tapped into ChoicePoint's databank and accessed the personal files of almost 150,000 Americans.Or, so says the company. Some officials suspect the records of as many as half a million Americans may have been compromised. In Washington today, a House Committee promised to look into how the the databank was breached. Commentator Amelia Warren Tyagi wants Congress to promise much more.