Former Kindertransport refugees remember leaving home

It is 75 years since the British government sanctioned a mission to bring Jewish children to the United Kingdom in the wake of the devastation of Kristallnacht, in Germany and Austria, in the lead up to World War II.

In what one former child refugee said was "an exceptional act of rescue", 10,000 children were put on transport by their parents who were desperate to get them to safety.

Acts of commemoration are taking place this week, but as survivors grow old, how should their stories be remembered by younger generations?

Newsnight went to meet four of them.