Jonathan Powers says America thirst for oil threatens its economic and national security . He says America sends two to hostile regimes which helps fuel terrorism , insurgency . Oil constrains Americans foreign policy choices , he says . Powers : U.S. should dedicate years to developing alternatives to oil .
Jonathan Powers says U.S. thirst for oil threatens its economic and national security . He says America sends billions to hostile regimes which helps fuel terrorism , insurgency . Oil constrains American foreign policy choices , he says . Powers : U.S. should dedicate next two decades to developing alternatives to oil .