9/11 anniversary: Emotional tributes paid to lives lost

US marks 20 years since the deadliest terror attacks on its soil.

Also, the Muslim world after 9/11.

Plus, after world’s first climate change induced famine in Madagascar, scientists warn that climate change will disrupt further food security in Eastern and Southern Africa.

Joining Julian Worricker to discuss these and other issues are Myriam Francois, Franco-British journalist and film maker; and Ian Black, Visiting Senior Fellow, Middle East Centre at the London School of Economics.

(Image: Flowers on a 9/11 memorial while it reflects the Tribute in Light art installation on the 20th anniversary of the September 11, 2001 attacks in New York City. Credit: REUTERS)