Easy.
The pre-arranged signal becomes 'if you get a broadcast without both exact phrases A and B, or with C, or with D, then take action XYZ' (for example).
And I'm not sure how you'd spot 'patterns' in quotation-and exhortation-ridden rantings... especially in dialectic Pashtu, which I understand is pretty scarce in the CIA generally (never mind the cryptography section).
But, as I say, you just post commands on a website. Or even the text of the message. With pretty pictures, if they're relevant. Stick it on a website in .nu, or in the free space your university gives you, or an innocent friend's Linux box, and access it from a net cafe. Or just go into Yahoo and chat <g>
But I'm basically against tampering with the media. It's far too tempting a tool for any government even in good times... and no, I *don't* trust anonymous and secret security services to put my best interests before their potential convenience.
How many state secrets really protect the security of the nation - as against the potential embarrassment of its leaders or some governmental body caught in crime, dirty dealing or just plain lying or breaking the rules by which it should run...?
Although I agree it might be worthwhile screening messages first for potential clues, maybe even for a day, I don't believe they should be altered. If those recent tapes had been, would that geologist have recognised the rock strata in the background and been able to locate the region so accurately, or at all? |
