Hart linked American energy policy with national security in an essay published in November 2007. Hart wrote, "In fact, we do have an energy policy: It's to continue to import more than half our oil and sacrifice American lives so we can drive our Humvees. This is our current policy, and it is massively immoral." Hart currently sits on the board of directors for the Energy Literacy Advocates. He founded the American Security Project in 2007 and he started a new blog in 2009.