It’s stories like this one that cause me to think that events in Egypt may have gone past a tipping point:
Egyptian air force fighter planes buzzed low over Cairo, helicopters hovered above and extra troop trucks appeared in a central square where protesters were demanding an end to President Hosni Mubarak’s rule.
State television said that a curfew has been imposed in the capital and the military urged the protesters to go home.
But the thousands of protesters in Tahrir Square choosed to stay on Sunday.
The show of defiance came as Egypt entered another turbulent day following a night of deadly unrest, when looters roamed the streets in the absence of police.
Opposition groups in the country have called for national unity, and Mohamed Elbaradei, a leading opposition figure, is said to be heading to Tahrir Square to join the protests.
The Muslim Brotherhood movement also backed Elbaradei to negotiate with the government, a leading member said on Sunday.
ElBaradei, the former head of the International Atomic Energy Agency, came back to Egypt on Thursday.
As the protests continue, security is said to be deteriorating and reports have emerged of several prisons across the country being attacked and of fresh protests being staged in cities like Alexandria and Suez.
The once omnipresent police continue to be missing in action, which has led to this: