2003 northeast blackout: Where were you when the lights went out?
Wednesday, August 14, 2013, 12:37 PM -
On August 14, 2003, North America was hit with its biggest-ever blackout.
A power outage that began in Ohio spread to eight states and most of Ontario, leaving more than 50-million people without power, some as long as four days.
Experts say the blackout tested Ontario's aging electrical system and helped bring in mandatory reliability standards. But while Hydro One said the possibility of a similar event occurring today is low, the grid is still vulnerable to cyber threats, human error and extreme weather.