The D Brief: NOLA attacker acted alone, FBI says; China’s new jets; Cyber breaches hint at what’s next; US Steel sale ...
Update: New Orleans attacker acted alone, vowed allegiance to ISIS, officials say. Reversing an early assessment, FBI officials said Thursday that Shamsud-Din Jabbar, a 42-year-old Texas native who served as a U.S. soldier in Afghanistan, acted alone when …