How Instagram changed the world in 10 years - YouTubeFrom Grumpy Cat to political activism, here is how Instagram, the world’s most popular photo-sharing app, changed the world in a decade. Subscribe: http://smarturl.it/reuterssubscribe Reuters brings you the latest business, finance and breaking news video from around the globe. Our reputation for accuracy and impartiality is unparalleled. Get the latest news on: http://reuters.com/ Follow
