The Latest on Facebook's privacy scandal (all times local): 7:15 p.m. Heated exchanges have dominated testimony in Britain by the former CEO of Cambridge Analytica. Alexander Nix vigorously defended himself Wednesday amid allegations the political consulting firm scraped Facebook data and used it to help Donald Trump win the 2016 presidential election. U.K. authorities are also investigating whether Facebook data was used in Britain's referendum on leaving the European Union. The hearing ...