Now that Russia and China have warned the United States against militarily intervening on behalf of the Syrian rebels, the need for a separate superpower summit between Barack Obama and Vladimir Putin is more urgent than ever. The dangers of a super-collision over a Middle East crisis are greater than they have been in exactly 40 years since U.S. President Richard Nixon ordered all global U.S. military forces moved to an alert status of DefCon One to deter Soviet President Leonid Brezhnev from...
