SAN FRANCISCO, CA - NOVEMBER 15: A San Francisco police officer on bike escorts 5-year-old leukemia survivor Miles, also known as BatKid after arresting the Riddler November 15, 2013 in San Francisco. Make-A-Wish Greater Bay Area foundation turned the city into Gotham City for Miles by creating a day long event bringing his wish to be a BatKid to life. (Photo by Ramin Talaie/Getty Images) ORG XMIT: 187596870