(January 5, 2017, 3:08 PM EST) -- RICHMOND, Va. — An intervening understanding of how the circuit applies the government contractor defense to failure-to-warn cases requires vacating a remand order, a Fourth Circuit U.S. Court of Appeals panel held Dec. 21 (Charles and Louise Brinkman v. General Dynamics Corp., Electric Boat Corp., et al., No. 15-1752, 4th Cir.; 2016 U.S. App. LEXIS 22907)....