South Sudan's first lady Mary Ayen Mayardit and Stephen Dhieu Dau, the country's finance minister, have been identified in a new report as individuals fueling and profiting from violence in South Sudan.#160; The Sentry, an investigative initiative co-founded by actor George Clooney and human rights activist John Prendergast, released the report Monday. It charges that#160;top South Sudan officials were paid millions of dollars for services to the South Sudan army. The Sentry's special investigations director, J.R. Mailey, said there was evidence that Interstate Airways, an airline company partly owned by the first lady, received six...