George Clooney has been laying low in the film business recently. But he’s been getting more active politically. I told you a few weeks ago that he was donating $500,000 to the March 24th March for Our Lives. Now Clooney and John Prendergast have co-written an Op Ed piece for “Foreign Affairs” magazine on how to achieve peace in Africa. In the piece, titled “The Key to Making Peace in Africa: Fighting Corruption Can Help End Conflict,” Clooney and Prendergast, the actor’s partner in The Sentry, a project of Clooney’s South Sudan effort called Not On Our Watch. write: