JEFFREY BROWN: Next, we update the situation in another part of the world. It's been two months to the day since President Hosni Mubarak was forced from office.
Margaret Warner reports.
MARGARET WARNER: There had not been this many protesters in Cairo's Tahrir Square in weeks, but on Friday, tens of thousands showed up to vent their impatience at the slow pace of change under the ruling military council.
The crowd, with a few soldiers joining in, also demanded the military move more quickly to prosecute former President Hosni Mubarak and his family for corruption. After nightfall, in the early hours Saturday, troops stormed the protester's camp, killing two and injuring dozens more.
The army denied using live ammunition, but it was the worst violence since the uprising that drove Mubarak from power two months ago. Yet on Sunday, hundreds of protesters continued to defy army orders to clear the square. They repeated demands to speed up a probe into the Mubarak family's wealth.
Shortly afterward, in an audio statement on the Al-Arabiya news channel, Mubarak defended his honor and denied he or his wife have hidden money abroad.
HOSNI MUBARAK, former Egyptian president (through translator): I have spent my whole life serving the nation with honesty and integrity. I cannot remain silent in the face of continual campaigns of defamation and false accusations that aim at ruining the reputation and integrity of my family and me.
MARGARET WARNER: Later Sunday, there were signs the demands for action were being heard. Egypt's public prosecutor issued a summons for questioning to Mubarak and his two sons. Mubarak is living in the resort town of Sharm el-Sheikh.
Signaling their unhappiness, some protesters Friday also were demanding the ouster of Field Marshal Mohamed Hussein Tantawi, leader of the governing military council. Today, the council has held a referendum on changes to the constitution. It also has set parliamentary elections for September, with presidential elections to follow.