Plate 23 from War Primer 2. 2011 Artist’s book, 11 13/16 x 9 13/16 x 3/4" (30 x 25 x 1.9 cm). Collection Tom Price, London. © 2013 Adam Broomberg and Oliver Chanarin

Aircraft, at right, is seen as it is about to fly into the World Trade Center in New York on Tuesday. The aircraft was the second to fly into the tower Tuesday morning