I came across this presentation while watching MHZ networks on Sunday. Unfortunately I cannot embed it here but here is a link to this program from The Carnegie Council. http://www.cceia.org/resources/video/data/000296?media=20100201_GarryWills_Full.mp4 Or you can down load it here. http://media.carnegiecouncil.org/carnegie/video/20100201_GarryWills_Full.mp4 Here is part of the transcript.

Today he is here to talk about an entirely different subject, which is how the atomic bomb transformed our nation. In Bomb Power: The Modern Presidency and the National Security State, Professor Wills weaves a fascinating narrative. It is a story that grows out of the Manhattan Project and the secrecy surrounding it. As told by the skillful historian, it is very compelling, and in many ways it is a continuum of some of Professor Wills' earlier work, in that it gives perspective on the enduring story that is America by finding deeper meaning in original text. In this case it is the U.S. Constitution. It is Professor Wills' thesis that acquisition of the bomb gave the president vast power—not only to use the bomb, but it also became the model for the covert activity and overt authority of the government we now have. And this, writes our speaker, upsets the balance of powers as set forth in the Constitution by giving the president more authority than originally intended by the Founding Fathers. He argues that, whatever the justification for its manufacture and use, the bomb was built unconstitutionally and the precedent which this set endures to the present day. In the last few years, increasing battles against centralized power have erupted from many quarters. George W. Bush left the White House unpopular because of what many saw as his abuse of power. And although Barack Obama has promised change, the momentum of an expanded executive bureaucracy is not easily reversed. The powers given to the president since World War II, followed by the needs of the Cold War and the war on terror, all make a vast and intricate structure that may not be easy to dismantle.

Professor Garry Wills gives a good view how the presidential powers have expanded since WWII.