Egypt protests – Day of Departure live updates

• Egypt braced for "day of departure" rally in Cairo • Flashpoints could occur after Friday prayers • US and Egypt reportedly in talks on replacing Mubarak • Mubarak warns: 'If I resign today there will be chaos' 7.41am: The Guardian's Harriet Sherwood reports: The demonstration in Alexandria, Egypt's second city, is expected to be very big today, surpassing the 100,000-plus who came out on to