Line Surges News Today

Americas grid is now monitored more closely than ever, checking for line surges, 30 times a second. and since the northeast 2003 blackout, 16,000 miles of new transmission lines have been added to the grid. still, some in the northeast are more than 70 years old. >> a lot of it is old, there is no question about it. >> reporter: todays biggest domestic fear, cyber attack on the grid. >> recently the administration held a white house-level cyber exercise, the scenario was a terrorist attack that ...