the answers to all of your medical questions. thanks for watching. i m dr. sanjay gupta. more news on cnn starts right now. and from the cnn center in atlanta, georgia, this is cnn saturday morning for july 11th. i m t.j. holmes. i m betty nguyen. thanks for starting your day with us. it is 8:00 a.m. in atlanta and noon in ghana where poeb has arrived for a meeting with the country s president john atta mills. president obama is expected to speak in about 40 minutes and when he does we will bring it to you live. and we also have filmmaker spike lee in the house today. it s the 20th anniversary of do the right thing. can you believe it s been 20 years already? this ground-breaking movie addressed racial stereo types and forced a conversation on race relations across the country. spike will be here to discuss the film and his friend, the late michael jackson. we want to start with the president on his trip to began na, set to speak over there in just about 40 minutes