Faith leaders pose for pictures during an event to promote religious unity in central London on July 6, 2015, as Britain prepares to mark the ten year anniversary of the 7/7 London bombings in which 52 people were killed. (From L-R) Rabbi Laura Janner-Klausner, Imam Qari Asim, 7/7 survivor Gill Hicks and Reverend Bertrand Olivier. AFP PHOTO / NIKLAS HALLE'N (Photo credit should read NIKLAS HALLE'N/AFP via Getty Images)
