Former President of the Soviet Union Mikhail Gorbachev, left, is greeted by former President George H.W. Bush, right, as the two meet for lunch Thursday, Nov. 1, 2012, in Houston. Gorba

 

              Former President of the Soviet Union Mikhail Gorbachev, left, is greeted by former President George H.W. Bush, right, as the two meet for lunch Thursday, Nov. 1, 2012, in Houston. Gorba
Former President of the Soviet Union Mikhail Gorbachev, left, is greeted by former President George H.W. Bush, right, as the two meet for lunch Thursday, Nov. 1, 2012, in Houston. Gorbachev is in Houston to speak at the Brilliant Lecture Series. (AP Photo/David J. Phillip)