(June 9, 2017, 2:35 PM EDT) -- WASHINGTON, D.C. — In a complaint filed June 1 in District of Columbia federal court, one internet journalist sued another for defamation over a Twitter posting that she says falsely insinuated that she is a white supremacist (Cassandra Fairbanks v. Emma Roller, No. 1:17-cv-01052, D. D.C.)....