unmistakable shove military force. fighter jets flying low over cairo's tahrir square, liberation square which has been a symbol of defiance for days now against the mubarak presidency. and people here are still chanting curfew is supposed to have begun minutes ago but they refuse to disperse. i've been talking with the professor. what do you think when you see these fighter jets overhead? >> we're not going to be intimidated by all of this. this is a sign of -- if he's strong enough he would face the people, change his execution, drop down the assembly which has been thwarted. >> do you think "the fighter" jets are a warning? >> no, not at all. the people here are gathering more and more. it makes them stronger and stronger. these people are strong because they are strong from that's right. they are strong by holding each other, by helping each other out