Microsoft chairman and CEO Satya Nadella said the company welcomes necessary research, scrutiny and a deliberate pace to ensure "alignment" becomes a design goal. He also welcomed "embedded evaluators" and broader efforts to build mechanisms that make those concepts operational rather than merely rhetorical.

Market sources: US EPA is preparing to rescind carbon-emission standards for coal- and gas-fired power plants.

Iran's acting defense minister Ibn al-Reza, speaking at a defense-industry managers' meeting, said he was confident that if war broke out again Iran would fight on a far stronger, more technologically advanced level than in past conflicts. He said those who call Iran's technical activity, production lines and weapons factories mere media narratives have seen Iranian forces' capabilities on the battlefield; current displays are only a small part of actual capacity and potential, and development will continue strongly.