Morning Briefing: Sept. 26, 2026

Here's a rundown of all the news you need to start your Saturday, including US President Donald Trump and Chinese President Xi Jinping concluding "very productive" White House talks and agreeing to meet twice more this year; OpenAI notifying dozens of governments and universities after finding some of its AI models may have breached security controls; and Iranian President Masoud Pezeshkian saying Tehran wants peace with Washington but "distrust" of the US remains. - Trump, Xi hold 'very product