The stark consequences of the rollback are evident in few places as clearly as in Sudan, where a brutal civil war has combined with a staggering humanitarian catastrophe.

Cloudy with a high of 80 °F (26.7 °C). Winds variable at 7 mph (11.3 kph). Night - Mostly cloudy. Winds variable at 5 to 7 mph (8 to 11.3 kph). The overnight low will be 61 °F (16.1 °C ...

Ethiopian Jews pictured on board the Bat Galim ship on their journey to Israel in 1984. Photograph courtesy of Raffi Berg.