The key difference between last week's two IT bloopers is that the cyber-attack was exogenous while CBOE's software glitch and subsequent slow response were internal issues.
It has drawn the battle lines and will keep to its game plan, with Bernanke banking on the Cyprian crisis as evidence that unexpected exogenous events can impact the U.S. economy.
The idea of using supplements, at least in the US, is that by taking exogenous melatonin at appropriate times, you can succeed in resetting your body's clock and beat jet lag.