Ban Ki-moon reflects on time as UN secretary general

As UN Secretary General Ban Ki-moon prepares for the final months of his position, the world is beginning to examine his legacy.

The BBC's Laura Trevelyan spoke to him at the United Nations in New York.

They discussed his critics and regrets, and his hopes that a woman would take on his position.

Video by Andrew Blum and Olivia Lace-Evans. Produced by Mat Morrison.