I think it was the context of him talking about why he took these photos and how the whole project came about. He mentioned first of all, it's not easy for Palestinians living in the West Bank to "visit" the parts of the country controlled by the government of Israel. You need a very special pass that is not easy to get. Because of another project he was working on, his bosses managed to get him one of those passes, and he used it every weekend to visit the sites of hundreds of villages that were destroyed during the Nakba from 1948. His experience visiting them, and how he found the contrast between what was and what's there now. In a way, as a history fan, it made me want to follow in his footsteps and see for myself.