By Sabrina Tavernise and Waqar Gillani Published: February 27, 2010 Cross Post from The New York Times LAHORE, Pakistan — Umar Kundi was his parents’ pride, an ambitious young man from a small town who made it to medical school in the big city. It seemed like a story of working-class success, living proof in this unequal society that a telephone operator’s son could become a doctor. Lahore has enduring social problems like chronic unemployment. But things went wrong along the way. On campus Mr. Kundi fell in with a hard-line Islamic group. His degree did not get him a job, and he drifted in the urban crush of young people looking for work. His early radicalization helped channel his ambitions in a grander, more sinister way. Instead of healing the sick, Mr. Kundi went on to become one of Pakistan’s most accomplished militants. Working under a handler from Al Qaeda, he was part of a network that carried out some of the boldest attacks against the Pakistani state and its people last year, the …