An investigation Frist can't avoid

As we noted earlier this week, Senate Majority Leader Bill Frist seems to have pulled off a suspiciously well-timed dumping of stock in his family's big healthcare business. It turns out that we weren't the only ones interested in the story: The Securities and Exchange Commission and federal prosecutors are now investigating Frist's sale of his stock in HCA, Inc. According to UPI, the Justice Department has just served a subpoena on HCA. The company says it believes the subpoena requests documents related to Frist's sale of the stock in July -- just before the stock price took a dive on a bad earnings forecast.