AdvertisementIn Yemen's South, Islamists Gain Ground04:17Download AudioResumeAugust 13, 2011Kelly McEversfacebookEmailYemenis walk past Saint Anthony Church in the southern city of Aden in 2010. Two months ago, tens of thousands of residents fled to Aden from their homes in Zinjibar after militants stormed the town. The displaced persons are now camped out in schools in Aden. (AFP/Getty Images)