WASHINGTON/NEW YORK — Achieving justice in the targeted killings of journalists is a difficult task made even more complicated in cases that take place in wartime, experts say. On a global scale, 85% of journalist killings around the world since 2006 remain unsolved, according to a report released by UNESCO on Saturday. In 2013, the United Nations declared November 2 the International Day to End Impunity for Crimes Against Journalists. Impunity in journalist killings has long been the norm, and active conflict exacerbates the problem, according to Jodie Ginsberg, chief executive of the Committee to Protect Journalists, or CPJ. “You