The supposed “responsibility to protect” has taken America into a war on the side of the ultimate killers of innocents. (See also "Rebel Libya: ‘Brothers who fought in Iraq and Afghanistan, now is the time to defend your land!" on the Tatler.) In the absence of any evident national interest justification for bombing Libya, the Obama administration is said to have been motivated by the so-called responsibility to protect — or “R2P” per the wonkish English acronym. In American discussions, “R2P” has quickly come to be associated with Obama advisor Samantha Power. But “R2P” did not emerge full-grown from the...