This week, conflict and crisis dominate the headlines. In DR Congo, M23 rebels appear to have seized the key city of Goma, forcing thousands to flee and reigniting tensions over Rwanda's alleged involvement. In Gaza, displaced civilians are finally returning north, but the fragile ceasefire is under strain after a controversial hostage transfer by Hamas. And in the United States, a tragic air disaster – the first major commercial crash in 16 years – is raising serious concerns over air traffic control and sparking political blame games.

Produced by Gavin Lee, Luis Miguel Cabrera and Guillaume Gougeon.