"A 'former' CIA officer named John Kiriakou told ABC News that spies broke an al Qaeda terrorist in '30, 35 seconds,' using waterboarding. The story spread everywhere. Of course it was a horrific lie.
Kiriakou told ABC's Brian Ross the alleged terrorist, Abu Zubayadah, broke in less than a minute and 'from that day on he answered every question.' The story spread to the major press outlets, and conservatives like Rush Limbaugh and National Review's Jonah Goldberg used it to defend waterboarding.
I guess we just assume MI5 does it as necessary.