Why are Ethiopia and Egypt joining BRICS?

The BRICS bloc of developing nations agreed this week s to admit six new countries. The countries Argentina, Egypt, Iran, Ethiopia, Saudi Arabia and the United Arab Emirates - are set to join in January. Can this counter Western dominance?<br /> <br /> As thousands of UN troops speed up their pull out of Mali, despite a deteriorating security situation. We talk to BBC Arabic&rsquo;s Feras Kilani the first journalist to travel to Northern Mali since French forces ended their military operation there two years ago<br /> <br /> Plus why are more airlines adopting the use of sustainable aviation fuel? We hear from an expert based in Kenya