. >>> charlie sheen, rushed to the hospital again. what really happened this time from an eyewitness? will this be the last straw for cbs? >>> and where's the beef? taco bell slams the charges that its meat is mostly filler. this morning, the man in charge fights back, exclusively here on "gma." >>> good friday morning, everyone. we have two major stories developing overseas right now. that growing revolution in the middle east. egyptians are headed there right now. huge rallies are under way to proft their government. and for many of them, george, this is the first time they're doing this. >> and the government is out there in force. they're using force just short of deadly. rubber bullets, batons. they've closed off much of the internet. you see how the revolutions spread on cell phones and facebook and twitter. that's been cut off, effective today. >> we do have lama hasan coming up. >>> also in south africa this morning, george, there was a lot of concern about 92-year-old nelson mandela. he's been in the hospital for a few days.