Dr. Anthony Fauci invoked the Fifth Amendment during a GOP-led hearing on the pandemic response, following a preemptive pardon from President Biden. Meanwhile, the U.S. and Saudi Arabia conducted airstrikes against Iranian-backed militias in Iraq amid escalating regional tensions. Other stories include a critical national blood shortage, a Supreme Court appeal regarding a defamation verdict against Trump, and a petition by AI researchers urging global oversight to slow rapid AI development.