Five-year-old leukemia survivor Miles Scott, dressed as "Batkid" receive a key to the city declaring him "Junior Mayor" from San Francisco Mayor Ed Lee (L) during a ceremony as part of a day arranged by the Make- A - Wish Foundation in San Francisco, California November 15, 2013. The young cancer survivor was treated to various super hero scenarios including receiving a commendation at San Francisco City Hall. (Robert Galbraith/Reuters)