A Russian-born British scholar is suing an alleged FBI informant and four news outlets for allegedly defaming her by linking her to Russian efforts to influence President Donald Trump's 2016 campaign. Svetlana Lokhova filed the suit Thursday in federal court in Alexandria, Va., seeking more than $25 million in damages from longtime University of Cambridge academic Stefan Halper as well as The Wall Street Journal, The New York Times, The Washington Post and MSNBC. Lokhova alleges that Halper and the news outlets conspired to spread a false narrative that she approached then-Defense Intelligence Agency Director Michael Flynn on behalf of...