to surmise whether this might have been a cooperation, this arrest as a result of a cooperative effort of british forces, u.s. forces, pakistani intelligence forces? >> i think if it is going to be a cooperation of any, it's likely to be american and pakistani. u.s. intelligence operatives really have the preponderance of electronic eavesdropping in the sort of northwest frontier province, the border area between pakistan and afghanistan. and we've seen that exhibited in a number of occasions, recently, where we know that european intelligence agencies have had tip-offs about their nationals being in that border region and those tip-offs have come from u.s. intelligence sources. and we're told, again, that that cooperation between these different intelligence agencies have been critical. now, it's been difficult in the past to get this effective