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The latest news on Ferguson. Plus, a look at who could replace Defense Sec. Chuck Hagel.
(CNN) - The U.S. is considering new security measures at airports due to increased concern that terrorists from al Qaeda in the Arabian Peninsula are developing explosives designed to avoid detection by current security screening, U.S. officials tell CNN.
Officials tell CNN there is no imminent threat or plot; however, an additional vulnerability has been identified, which the Department of Homeland Security is working to address.