CIA Director Says He Is Escalating Efforts To Solve 'Havana Syndrome' Mystery

CIA Director William Burns says he has redoubled the agency's efforts to uncover the cause of Havana Syndrome — the mysterious set of ailments that has afflicted more than 200 U.S. officials and family members around the world.

That includes the assignment of a senior officer who once led the hunt for Osama bin Laden to lead the investigation and tripling the size of a medical team involved in the probe, Burns told NPR on Thursday in his first sit-down interview since being confirmed as the agency's chief in March.

"I am...