Today's Takeaways: Playing Politics With Energy, Following a Space Trail, and Washington's Secret History

Artist depiction of Philae touching down on the comet 67P/Churyumov-Gerasimenko
( Deutsches Zentrum fuer Luft- und Raumfahrt / German Aerospace Center )
( Deutsches Zentrum fuer Luft- und Raumfahrt / German Aerospace Center )