Pakistan's record smog triggers anguish and anxiety

Lahore -- a city of 14 million people stuffed with factories on the border with India -- regularly ranks among the world's most polluted cities, but it has hit record levels this month. Schools have closed in the main cities of Punjab province, of which Lahore is the capital, until November 17 in a bid to lower children's exposure to the pollution, especially during the morning commute when it is often at its highest. "The children are constantly coughing, they have constant allergies. In schools...