Travellers in Afghanistan are forced to face the dangers of bad roads, robbers and armed fighters.

While they have little hope concerning the transport system and thievery, some Afghans have found that the right ringtones for their mobile phones, what they call, "a Taliban visa", can protect them from the group.

But, they say, the very same ringtones could invite unwelcoming questions from the authorities.

Al Jazeera's Bernard Smith reports from Kabul.