[vidarh]

The cannot get a US court to compel you to hand it over.

How likely do you think it is that any of the UK agencies that have powers to request interception under RIPA will refuse a "please scratch your back, and we'll scratch your back later" request from the NSA if the NSA actually cares about your data enough to try to get someone to compel you to hand it over?

And RIPA does provide basis for compelling you to hand over keys or face prison.

Being in the UK may protect us against NSA just taking whatever they feel like whenever they feel like it for no reason at all, but I very much doubt it does much good for anyone that actually ends up in the NSA's crosshairs.