know, it happens to be my profession and those are our colleagues, but because the signals of violence, the violent turn of this government crackdown maybe about to intensify in cairo. ian, i was watching last night and things were very, very vicious, extremely vicious around tahrir square. tell me what s happening there right now. reporter: brooke, right now i heard a gunshot go off right when you were asking me that question. things are tense. they re not as bad as the previous night. things are a lot calmer, at least down at the southern end of tahrir square. the northern end i know when we were hearing reports and we were seeing clashes up there, skirmishes, eave had pro mubarak groups trying to test the lines around the square. but the anti-mubarak protesters within the square seem to be alert and well organized and able to push back any kind of advancement on their position. but you know, the situation is still very, very tense. still hearing gunfire you say. and ia