he's going against multinational companies who are profiting off the violence and instability in south sudan. he talked about the campaign to stop the looting of this central african nation. we are joined live from london. what did you learn? >> well, for those of us who covered south sudan's independence, watching it ascend into the chaos it did was heart breaking. but unfortunately, it disappeared like so many of these conflicts do off the news agenda. and now george clooney and john pendergast together have put together this incredibly ambitious investigative report and they let us have a little peek into it. take a look at this, alisyn. >> reporter: polluted waters, far-reaching corruption, and a department the u.s. state department accuses of breaking u.s. arms sanctions.