<i>Fact of the matter is, if the Metropolitan police came to Facebook with the proper paperwork requesting data on a British user as part of a criminal case, Facebook would cooperate with them.</i><p>That&#x27;s because they are British. No, seriously.<p>Some countries have most favored nation status in diplomatic and economic affairs. As a result, if you piss off the wrong partner nation then you will get stomped on locally.<p>Brazil doesn&#x27;t. So the US is not going to force the whatsapp guys to do shit.