9/11: Twenty years on

A series of events are planned in New York, Pennsylvania, and Washington DC to mark the anniversary.

Also, we hear from Afghanistan, perhaps the one country most affected in the aftermath of the 9/11 attacks.

Plus, Mexico's Supreme Court has issued a landmark ruling, saying that penalising abortion is unconstitutional. We have analysis.

Joining Julian Worricker to discuss these and other issues are Bahar Dutt, an Indian conservation biologist, author and environmental journalist based in Delhi, and Mark Landler, an American journalist and London bureau chief for the New York Times newspaper.

(Image: A bronze parapet bearing the names of victims in the 9/11 attacks adorned with flowers at the National September 11 Memorial and Museum in New York, the United States. Credit: Xinhua/REX/Shutterstock)