Ian Pannell reports on the first American casualties during the joint U.S.-Israeli attack on Iran, with at least three service members killed in action and five more “seriously wounded”; James Longman has the latest on the shockwaves reverberating across the Middle East; Pierre Thomas has details on the shooting outside an Austin nightclub that left at least two people dead and the FBI investigation into a possible terror link; and more on tonight’s broadcast of World News Tonight with David Muir. ...