Available Light: A Series on the Photography of Place here is a sign in front of a pile of rubble, cinderblocks and piping and small metal tangles heaped into a doorway. Danger, it says. Nothing more. The destruction is ongoing and incomplete. Yet every person walking the dim hallways lit by work lights or sunlight improbably bouncing around corners into the building’s center is happy. Proud. The scene looks like so many on the evening news—the result of mortar…