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The 10-year US Treasury yield rose 3 bps to 5.02%, surpassing its 2023 peak and reaching the highest level since 2007. The move forms part of a global bond selloff driven by a jump in energy prices after heightened Middle East supply risk following a late‑February US strike on Iran, alongside debt and inf concerns. Heavy corporate borrowing to fund AI spending is adding supply to markets and acting as additional stimulus to an already-resilient US economy.

Business Insider reports that in an internal memo Microsoft (MSFT.O) CEO Nadella said AI must remain under human control, backed broader third‑party testing, and warned the company must take time to ensure the technology's safety.