If you really want to understand why the Government meddling doesn't seem to be improving the situation in the capital markets, then read this article.  In modeling and controlling complex systems, one important measure of effective control is the amount of oscillation in the system; if you have wild swings in the output, then there is a good chance that your control system is either not measuring the correct system parameters (you are operating blind), or is controlling the wrong inputs (you are pulling the wrong levers).

Central economic planning does both...

http://www.lewrockwell.com/rozeff/rozeff232.html