During the Arab Spring, NPR's Andy Carvin used social media to report on uprisings happening a world away. Although Carvin's based in DC, his twitter stream became a reliable one-stop shop for news about events on the ground from Tunisia to Egypt, Libya to Bahrain. 

Tonight, Carvin sits down with Brooke to talk about how he does what he does and what it might mean for the future of journalism. 

You can follow along on the livestream below, and tweet Andy questions using the hashtag #OTMlive. We'll be live-tweeting the event as well. 

Also, be sure to check out Andy's new book, Distant Witness: Social Media, the Arab Spring and a Journalism Revolution.

A week ago footage of an anonymous woman, knocked to the ground in Cairo, dragged and beaten by Egyptian soldiers, ricocheted around the world.  During the attack the woman, unconscious, had her shirt pulled up over her head, exposing her blue bra.  Cairo journalist Issandr El Amrani tells Brooke how the 'blue bra girl' has become a potent symbol of Egypt's political turmoil.