The reopening of the Rafah crossing feels like it should be an important moment. Symbolically, it is. From Sunday, people will be able to cross from Gaza to Egypt, and back again. Sort of. As ever, the headline is one thing and the detail is quite another. The Rafah Crossing will be open, but in a very limited way. For one thing, the only people who will be allowed to travel from Egypt into Gaza will be those who left Gaza during the war. The number of people allowed to return in this way will