From the BBC World Service: President Donald Trump has announced new tariffs, including a 100% levy on branded or patented drug imports from Oct. 1 onward — unless a company is building a factory in the United States. Which countries will be most affected? Then, Ethiopia has opened a controversial megadam built on the Nile River after 14 years of construction. It's at the center of a diplomatic spat with countries that fear their water supplies could be affected.