Family members of Iran's slain nuclear scientists and workers stand with the head of Iran's Atomic Energy Organization, Fereidoun Abbasi, right, in a ceremony marking Iran's National Day of Nuclear Technology, as President Mahmoud Ahmadinejad is seen on a giant screen behind them, in Tehran, Iran, Tuesday, April 9, 2013. Iran announced two key nuclear-related projects on Tuesday that expand the country's ability to extract and process uranium, which can be enriched for reactor fuel but also potentially for atomic weapons.
Arash Khamoushi Iranian Students News Agency, Isna