One of the greatest recent moments in the annals of peace during a century deeply marred by war and its atrocities was the handshake between longtime enemies Yitzak Rabin and Yassir Arafat in Washington, D.C., in 1993. Signifying a new era for the Middle East, the handshake was the public culmination of painstaking negotiations carried out by Shimon Peres, then Foreign Minister...