So here's a few more articles due to suggested legislation on Capitol Hill:
- Foreign Policy has a June 10 2016 article, "Preventing a Blackout by taking the power grid offline". The article discusses suggested legislation to set aside money to study replacing state of the art digital controls with more retro cyber-resistant analog ones
- The Hill has a May 20 2016 article "Why a Power Grid Attack is a Nightmare Scenario". Gives a pretty good quick summary to date, with some political angles.