Publicly, they have used innuendo to convey the message that perhaps what they used is a more common chemical that you think, and that such information would be bad to publish given the current state of violent tendancies and loonies running about. But,
[img]smile.gif[/img] wink wink say no more, right? That's the exact sort of innuendo I would make if I had used something I'd promised not to in the Geneva Convention.