Rex Tillerson holds a press conference in Nairobi US Secretary of State Rex Tillerson holds a press conference in Nairobi, where he discusses the economy and press freedoms. Tillerson's five-nation Africa tour -- which also includes Djibouti, Chad and Nigeria, all key allies in fighting Islamic extremism -- has been described as a "listening tour", with no deals or initiatives due to be announced. IMAGES AND SOUNDBITES