he joins us now on the phone before this major center square. good morning to you, greg. hey, gretchen, steve, brian, absolutely. we are in the center. tens of thousands of people filling up this square. they are determined. they are angry. they are not going to give up. they want to see president hosni mubarak go. we marched in with some. they came from all over cairo. one person told me he came as far as 50 miles away. it s quite a trek because the government has cut off all railings to this country. there is tension for sure. relations with the military and the protesters is pretty good. they re the ones keeping security right now but we watched as one soldier stood on top of his bank, firing live fire into the air to keep people away from his tank and keep people away from the government building that he was guarding. we also saw a couple of tussles in the crowd. people are suspicious. they re paranoid. they think there are double agents for the government amongst them