In the Sinai desert, thousands of African immigrants fleeing conscription, torture and conflict in East Africa risk being shot by border guards and held ransom by people smugglers as they try to get to Israel.Reporter Ramita Navai and director Paul Kittel arrive in the Sinai desert in north-east Egypt just over a month after the revolution that toppled the regime of Hosni Mubarak. Smuggling from Egypt to Israel has gone on for years, but now the smugglers are focused on people rather than goods.