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Taliban claims responsibility for deadly airport blast in Jalalabad

The attack on the base came a day after two U.S. military advisers — a lieutenant colonel and a major — were found dead after being shot in the head in their office at the Interior Ministry in the heart of the capital. The building is one of the city's most heavily guarded buildings, and the slayings raised doubts about safety as coalition troops continue their withdrawal.

-- Reported by NBC News, msnbc.com staff and news services