Concluding the two-part profile of the controversial US president. Tonight, evidence that Nixon was involved in sabotaging Vietnam peace talks to further his presidential ambitions.Astonishingly sensitive information and new interviews have been made available for this absolutely riveting (and scary) second part to the profile of Richard Milhouse Nixon. On his death in 1994, the four surviving US Presidents trooped out to pay tribute to "The Peacemaker", the epitaph chosen for Nixon's headstone. But the truth is somewhat different. He knew ending the war in Vietnam would assure the Presidency for the man who brokered that peace and made sure he was that man. He also entered secret negotiations with the South Vietnamese to dissuade them from attending Lyndon Johnson's peace talks in Paris on the promise of a better deal under a Nixon administration. In other words, he manipulated foreign policy for his own political ends. And it doesn't stop there.