Iranian nuclear chief 'resigns'

The BBC is reporting that the head of Iran's nuclear programme has resigned.

No immediate reason for the resignation has yet been revealed, but back in April during one of the inumerable stand-offs between the US and Iran over the latter's nuclear programme, Gholam Reza Aghazadeh said Iran had increased the number of centrifuges - required to enrich (and, the US claims, weaponise) nuclear material - it is running from 6,000 to 7,000 in February.