There are two ways that Palestinian labourers can travel to work in Israel. Those who have permits can cross through a military checkpoint. Those who have none, like the workers in this image, have to find their own way to get past the barrier that runs through the West Bank. Both ways are time consuming, and the penalties for being caught entering illegally can be harsh. But the far higher pay that can be earned in Israel compared to the West Bank is an incentive for many to make the crossing.