SYDNEY, AUSTRALIA - APRIL 2: The Sydney Opera House was lit up in blue to mark the ninth annual United Nations World Autism Awareness Day. (Photo by Richard Milnes/Corbis via Getty Images)
SYDNEY, AUSTRALIA - APRIL 2: The Sydney Opera House was lit up in blue to mark the ninth annual United Nations World Autism Awareness Day. (Photo by Richard Milnes/Corbis via Getty Images)