Chris Byron, the syndicated columnist points out, as we did a few days ago, that if there was illegal trading in HCA in June of this year there were a whole lot of others who were trading - including the insiders and a bunch of mutual funds who, according to Mr. Byron, were also dumping the stock.
Chris reaches the wrong conclusion IMHO when he states that " If Frist is guilty of insider selling, then so are all the others who sold at the same time. If they aren't guilty, then neither is he" since it is entirely possible that Senator Frist is NOT guilty of insider trading but that others who sold before him are guilty.
But the gist of the piece is on target, and worth the minute that it takes to register at the site.