Insider trading probe hits wall

Federal investigators are currently at a dead end in their probe of how investors got an early peak at a decision on Medicare payments, The Wall Street Journal reports.

The Federal Bureau of Investigation and Securities and Exchange Commission have been looking into the issue for more than six months, after a report from a group called Height Securities nailed what was about to happen. 

But according to the Journal, investigators are having issues making distinctions between insider trading and merely a smart prediction. 

"The legal quandary cuts to the heart of a debate about how business is conducted in the nation's capital, specifically whether the government's common practice of widely sharing information about policies could lead to violations of insider-trading laws," the Journal reports.