Analysis: Afghan security vacuum feared along "gateway to Kabul"
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An Afghan policeman keeps watch at a checkpoint in Maidan, Wardak province, March 12, 2013. Wardak, just a 40-minute drive from Kabul, is a prime example of what could happen in other parts of Afghanistan as the United States winds down an increasingly unpopular war, now in its 12th year. REUTERS/Mohammad Ishaq





