MORE than 5000 Africans have sent text messages to US President Barack Obama ahead of his much anticipated speech in Ghana overnight during his first visit to the continent since taking office. Macon Phillips, director of new media at the White House, said the initiative was part of an ongoing effort to make Mr Obama's speech and activities in Africa as accessible as possible to those living on the continent. The American government invited people to send questions via text, Facebook and Twitter from July 3. Three journalists, from Senegal, Kenya and South Africa, will select questions for Mr Obama...