By Gibran Naiyyar Peshimam and Jibran Ahmad BARA, Pakistan (Reuters) -Atop a police outpost in northwest Pakistan, Faizanullah Khan stands behind a stack of sandbags and peers through the sight of an anti-aircraft gun, scanning the terrain along the unofficial boundary with the country’s restive former tribal areas. On this cold and rainy February morning, he was looking not for aircraft but for
