Fuel is an essential component of fighting the war in Afghanistan and Pakistan's closing of the Khyber Pass underscores the vulnerability of its transport to sabotage.

After overthrowing the government, the Taliban are now trying to save what’s left of the roads they spent years blowing up, with none more critical than a two-mile-high pass through the Hindu Kush.

Traversing the Sabzak Pass in Afghanistan is treacherous. But for travelers in distress, one innkeeper, who personifies Afghan generosity, is there to help — with a cup of tea, a meal or car repair.