A narrow strip of scrubland and sand dunes on the Gaza side of the border with Egypt has emerged as a major obstacle in talks aimed at halting the Israel-Hamas war and freeing scores of hostages. Israeli Prime Minister Benjamin Netanyahu says that Israel must maintain control over the so-called Philadelphi corridor to prevent Hamas from replenishing its arsenal through what Israel says is a network of smuggling tunnels. (AP Video: Alon Bernstein)