[More in the cross-post on the MRC's NewsBusters blog.]
ABC's World News Tonight was the sole broadcast network evening newscast on 7 August 2015 to cover the U.S. Navy's announcement that it would soon position armed guards outside its off-base reserve centers. CBS Evening News and NBC Nightly News, along with Univision and Telemundo's evening news programs, ignored this change in policy. ABC's David Muir noted that "the decision follows the deadly shooting of five people at two facilities in Chattanooga where no guards were present," but failed to mention the possible Islamist motivation for the perpetrator.