n November of 2011, the TV show 60 Minutes did a big expose on insider trading within Congress. While everyone else is subject to basic insider trading rules, it turned out that members of Congress were exempt from the rules. And, as you would imagine, many in Congress have access to market-moving, non-public information. And they made use of it. To make lots and lots of money. Of course, after that report came out and got lots of attention, Congress had to act, and within months they had passed the STOCK Act with overwhelming support in Congress to make insider trading laws that apply to everyone else finally apply to Congress and Congressional staffers as well. As that link notes:
The lopsided votes showed lawmakers desperate to regain public trust in an election year, when the public approval rating of Congress has sunk below 15 percent.
Of course, here we are in 2013 and, lo and behold, it is no longer an election year. And apparently some of the details of the ban on insider trading were beginning to chafe Congressional staffers, who found it hard to pad their income with some friendly trades on insider knowledge.
H/T Scott T. Templeman