this morning on world news now, international terror. tourists targeted a museum in tunisia. the gunmen killing 19 people and wounding many others in the heart of the capital city. most of the victims from countries around the world. campus outrage. protests overnight at the university of virginia sparked by a video of an african-american student injured as officers take him down outside of a bar. the governor now calling for an investigation in to excessive use of force. generation overshare them study suggesting it is harmful to our children to include them in social media. everything from their self esteem to their safety is at stake. how can we resist posting that next great pic? it is thursday, march 19th. announcer: from abc news, this is world news now.