In an inspiring example of the power of social media, a photograph went viral in Los Angeles and led to some distraction and fun for a family whose 2-year-old daughter is undergoing treatment for cancer.  Hazel Hammersley's parents, restless and anxious during a weeks-long stay at Children's Hospital Los Angeles, used medical tape to spell the message "SEND PIZZA RM 4112" on their hospital window.  After a Reddit user snapped a photo of the message, at least 20 pizzas arrived in the hospital room, eventually leading the hospital to politely say they were at pizza capacity.  More from