not have to hide or be shy. like yeah, i'm transgender. it's like yes, i'm transgender. >> the revelation that charlie sheen is living with hiv created a buzz online as did the happy news of a new royal baby. >> fascinating. richard quest, where are you? >> worst story to set off tirades on social media about an animal. the killing of cecil the lion by an american hunter. >> it's a big tourist attraction to kill big game. but when you have these beautiful creatures that are innocently murdered for fun. it's not cool. best leap off the best seller list. i wish my book held that honor but we give it to "go set a watchman" published decades after "to kill a mockingbird." >> best discovery very far away. >> water on mars. there is water on mars.