In terms of energy policy, there has been a lack of strategic investment effort to diversify the nation's energy supply. That has led to greater vulnerability to oil price shocks and geopolitical risk than would otherwise be the case.
Finally, the military intervention in Libya's civil war was largely on "humanitarian grounds." Libya is not one of the world's biggest oil producers. The post-Gadhafi regime is not materially friendlier to U.S. interests and allies. I don't believe the U.S. should have intervened in that civil conflict on account of a lack of compelling national interests. The same holds with regard to Syria. I don't believe the interests rise to the level that would justify U.S. military intervention.