'Privyet, Alexel
'Greetings to you, too, Tom'
The climax of the ten-day Mission as astronauts TOM STAFFORD and DEKE SLAYTON Swing open the last hatch in the Docking Module and reach out to greet Soviet cosmonauts Alexei Leonov and Valeri Kubasov.
James Burke introduces the live coverage with the aid of a full-scale replica of the docked spacecraft.
The political detail is filled in by film interviews with senior administrators of both programmes.
Dr James C. Fletcher (NASA) and Prof Boris Petrov (Chairman of the Intercosmos Committee of the Soviet Academy of Sciences) explain how this once unthinkable event came not only to be thinkable but a necessary part of the Nixon-Kosygin detente agreement.