Summary: <p>Think the contents of your Gmail account are private? Think again. The scandal that brought down former CIA Director David Petraeus is shedding new light on the privacy of personal email accounts. Investigators apparently uncovered Petraeus' extramarital affair when they traced a string of threatening emails from a Gmail account, and subsequently rooted around the inboxes of some of the most powerful people in Washington. Tech Tuesday examines the laws that govern online privacy.</p>
