single demand, that president hosni mubarak leave power now. >> ben, i know it's difficult for you to speak because you're breathing in all of that tear gas and the other things in the air. we appreciate your staying with us. reuters was reporting there was smoke coming from the ruling party's headquarters in cairo. do you was reporting that there was smoke coming from the ruling party headquarters in ki row. do you know anything about that? >> well, i can see down the road in that direction and there appears that there were cars on fire in front of the ruling party headquarters but from my vantage point i don't think it's on fire at this moment. there were a lot of riot police guarding it throughout the last few days. although, that seems to be very close to the most intense clashes between the protesters and the riot police but i really can't tell for sure.