tachke tankers in the southwest of this country, attacked by gunmen, the taliban claiming responsibility. firing at the trucks and setting fire to the wheels. now, that was the sixth attack since the border was closed a week ago. there's no sign of when the border may reopen. there's some hope that a report today, a joint report by nato and the pakistan military, which examined a border incursion incident believed to be the reason the border was closed in retaliation by pakistan. in that report, nato said, yes, helicopters did cross it and they do apologize for the deaths of three pakistan border guards. so there's hope that that may lead to the border reopening. but in the meantime, hundreds of trucks and tankers are stranded, and this vital supply line is dangerously exposed, tamron. >> ian williams live in isl islamab islamabad, thank you. new details about the afghan