What would you do if the Internet or the power grid went down for over a year? Our key infrastructure, including the Internet and the power grid, is far more vulnerable than most people would dare to imagine. These days, most people simply take for granted that the lights will always be on and that the Internet will always function properly. But what if all that changed someday in the blink of an eye? According to the Federal Energy Regulatory Commission's latest report, all it would take to plunge the entire nation into darkness for more than a year would be to knock out a transformer manufacturer and just 9 of our 55,000 electrical substations on a really hot summer day. The reality of the matter is that our power grid is in desperate need of updating, and there is very little or no physical security at most of these substations.