“National security officials at the White House were recently issued a warning: move away from the immediate area as soon as possible if you ever feel the acute onset of pressure, sound or heat in the head. In brown bag lunches over the past week, policy staff at the Pentagon have been instructed to report any strange, sudden health symptoms without delay.” Convinced ‘Havana syndrome’ is real, Biden team issues sharper guidance for U.S. personnel. (I cover this story a lot because I know people who are paid to worry about threats like this, and they’re worried.)