bagPresident Obama said Sunday that the U.S. military will begin aiding what has been a chaotic and ineffective response to the Ebola epidemic in West Africa, arguing that it represents a serious national security concern. The move is a significant ramp up in the U.S. response and comes as the already-strained military is likely to be called upon further to address militant threats in the Middle East. The decision to involve the military in providing equipment and other assistance for international health workers in Africa comes after mounting calls from some unlikely groups — most prominently the international medical group Doctors Without Borders — demonstrating to the White House the urgency of the issue. More