5.45pm GMT:CloseLink to this update: http://www.guardian.co.uk/news/blog/2011/jan/31/egypt-protests-live-updates#block-51 The Economist's Cairo correspondent says he believes Mubarak's days are numbered, and has some telling details:

I knew it was truly over when I came home to find a neighbour in a panic. He had smelled a fire nearby. We traced its source soon enough, after climbing to the roof of my building. Smoke drifted from the garden of the villa next door, where workers had recently been digging a peculiarly deep hole, as if for a swimming pool. In a far corner of the garden stood rows of cardboard boxes spilling over with freshly shredded paper, and next to them a smouldering fire.

More intriguingly, a group of ordinary looking young men sat on the lawn, next to the hole. More boxes surrounded them, and from these the men extracted, one by one, what looked like cassette tapes and compact discs. After carefully smashing each of these with hammers, they tossed them into the pit. Down at its bottom another man shovelled wet cement onto the broken bits of plastic. More boxes kept appearing, and their labours continued all afternoon.

The villa, surrounded by high walls, is always silent. Cars, mostly unobtrusive Fiats and Ladas, slip in and out of its automatic security gates at odd hours, and fluorescent light peeps through shuttered windows late in the night. This happens to be an unmarked branch office of one of the Mubarak regime's top security agencies. It seems that someone had given the order to destroy their records. Whatever secrets were on those tapes and in those papers are now gone forever.

The piece concludes: "Perhaps I am still wrong, and it is not completely over. Maybe another battle will be needed, soon, before falls for good."