Energy Secretary Jennifer Granholm on Sunday warned in stark terms that the US power grid is vulnerable to attacks.Asked By CNN’s Jake Tapper on “State of the Union” whether the nation’s adversaries have the capability of shutting it down, Granholm said: “Yeah, they do.”“There are thousands of attacks on all aspects of the energy sector and the private sector generally,” she said, adding, “It’s happening all the time. This is why the private sector and the public sector have to work together.”- https://youtu.be/spjaM1YVIuc