How to foil NSA sabotage: use a dead man's switch | Technology | theguardian.com: " . . .It doesn't really matter if you trust the "good" spies of America and the UK not to abuse their powers (though even the NSA now admits to routine abuse, you should still be wary of deliberately weakened security. It is laughable to suppose that the back doors that the NSA has secretly inserted into common technologies will only be exploited by the NSA. There are plenty of crooks, foreign powers, and creeps who devote themselves to picking away patiently at the systems that make up the world and guard its wealth and security (that is, your wealth and security) and whatever sneaky tools the NSA has stashed for itself in your operating system, hardware, applications and services, they will surely find and exploit. . . . "