Comment: Wizard: The Life and Times of Nikola Tesla

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Wizard: The Life and Times of Nikola Tesla

http://www.amazon.com/Wizard-Nikola-Biography-Genius-Citadel...


http://youtu.be/OhpIb_rEOUI

"I, __________, do solemnly swear (or affirm) that I will support and defend the Constitution of the United States against all enemies, foreign and domestic."

https://en.wikipedia.org/wiki/Oath_of_enlistment

There is no duration defined in the Oath