The conclave has begun. The super secret process of choosing the next pope is underway at the Vatican. This is history unfolding before our eyes. For the first time in 600 years, a new pope will emerge during the lifetime of his predecessor. The cardinals have gathered in the Sistine Chapel. It's been specially outfitted with electronic-jamming equipment to keep the outside world outside. CNN's Chris Cuomo and Erin McLaughlin have the details of this historic day.