National Security and Double Government by Michael J. Glennon.

      After Obama took office in 2009,  one might have thought there would be a change in policies with the change in presidents.  But Obama, who had voted against the invasion of Iraq, and who promised to close Guantanamo, maintained nearly every aspect of the Bush foreign policy.  This article by a professor of international law at Tufts University helps to explain why it makes very little difference who the president is, and why voting and citizen participation in government seems to be a waste of time.