Mr Annan used the CHD in Kenya because it has no political agenda, so could be relied upon not to leak material in order to influence the talks one way or another.
See, everybody talks about how wonderful the convention speech was, but I tell people, I had good material to work with -- (laughter) -- good material.
In the talks leading up to the July deal, America had encouraged India to cap voluntarily its production of fissile material highly-enriched uranium and plutonium for bombs as the official nuclear five have done.