FBI chides Hotmail and Yahoo! for sidestepping UK laws: "Ed Gibson, FBI special agent and assistant legal attache of the US Embassy in London, said international ISPs operating in the UK used their international presence as an excuse for not complying with British laws.
'With Hotmail and Yahoo! you can't get data using RIPA [the Regulation of Investigatory Powers Act] because information is stored in the US,' Gibson said. 'Why aren't ISPs required to comply with the laws of this country?'"
Two US companies with services available in the UK. The FBI in the UK is complaining that the US companies don't fall completely under the UK RIPA Act because (surprise) the data is stored in the US.
Why is a US law enforcement agency pursuing US companies in the UK? Why not pursue them in the US directly? The inference is that there's some reason why they can't, and that they're going after them in the UK to circumvent US laws.