Nothing to see here, move along

How could he have known? AP:

Senate Majority Leader Bill Frist, a potential presidential candidate in 2008, sold all his stock in his family's hospital corporation about two weeks before it issued a disappointing earnings report and the price fell nearly 15 percent.
Frist held an undisclosed amount of stock in Hospital Corporation of America, based in Nashville, the nation's largest for-profit hospital chain. On June 13, he instructed the trustee managing the assets to sell his HCA shares and those of his wife and children, said Amy Call, a spokeswoman for Frist.
Frist's shares were sold by July 1 and those of his wife and children by July 8, Call said. The trustee decided when to sell the shares, and the Tennessee Republican had no control over the exact time they were sold, she said.
HCA shares peaked at midyear, climbing to $58.22 a share on June 22. After slipping slightly for two weeks, the price fell to $49.90 on July 13 after the company announced its quarterly earnings would not meet analysts' expectations. On Tuesday, the shares closed at $48.76.