Afghan boys warm their hands over a brick-factory fire during a cold day on the outskirts of Jalalabad, Afghanistan, east of Kabul, on Monday, Feb. 4, 2013. Kabul has been experiencing below-freezing weather and snow for several days. (AP Photo/Rahmat Gul)

Photo by: Rahmat Gul

Afghan boys warm their hands over a brick-factory fire during a cold day on the outskirts of Jalalabad, Afghanistan, east of Kabul, on Monday, Feb. 4, 2013. Kabul has been experiencing below-freezing weather and snow for several days. (AP Photo/Rahmat Gul)