Though not a supporter of Pakistan or ISI, I tend to diagree with the logic (or rather complete absence of it) in Mr. Srinivasan's thoughts. If just for the sake of arguments we believe that ISI got hold of a couple of naive 'sleepers' (Eritrean, a Somalian and an Ethiopian) suffused with Islamic angst and engineered a copycat suicide bomber attack, but gave them explosives that would not explode, just the presence of these non-Pakistani sleeper cells in UK proves Mr. Srinivasans logic wrong. What for example will happen if Al Qaida operators get hold of these sleepers and give them real explosives. So, in a way Pakistan's ambassador is right when she says "It's much more mixed up than people think. What you're seeing is something very lethal and it has nothing to do with ethnicity." It's a totally different matter that it seems that this Islamic angst is much more amongst youths with Pakistani origin that makes them more prone to end up being the grass root level workers who does the dirty job on behalf of Al Qaida leaders.