Does Anyone Understand What the Department of Energy Does?

Donald Trump's secretary of energy, Rick Perry, once campaigned to abolish the $30 billion agency that he now runs, which oversees everything from our nuclear arsenal to the electrical grid. The department's budget is now on the chopping block. But does anyone in the White House really understand what the Department of Energy actually does? And what a horrible risk it would be to ignore its extraordinary, life-or-death responsibilities?