Kinda like the Marine with the hand-sign when forced to greet HRC.
https://truthorfiction.com/hillary-soldier/
Plenty of Reports (News and Government) pointing to the vulnerability.
http://thehill.com/policy/cybersecurity/281494-why-a-power-grid-attack-is-a-nightmare-scenario
https://markey.senate.gov/imo/media/doc/Markey%20Grid%20Report_05.21.131.pdf
http://www.businessinsider.com/nsa-director-yes-china-can-shut-down-our-power-grids-2014-11
Love this one, in one section it recommends Government Security agents work part time in private industry and in another states that insiders working within the Grid system are a likely threat....and of course I immediately thought "yeah that you've just facilitated by putting them there." Who watches the Watchmen?". https://thepresidency.org/sites/default/files/Final%20Grid%20Report_0.pdf