Says it's established a task force to look into the so called Havana syndrome, the mystery ailment that's had dozens of U. S officials abroad in recent years. NPR's Greg Marie explains. Officials have suffered chronic migraines, dizziness and memory loss. The CIA said the task force will work with other government agencies to further investigate the cause of ailments so severe they forced some officers to retire. A report commissioned by the State Department said last December that microwave radiation is the most plausible cause. More than 40. Diplomats and a smaller number of intelligence officers have suffered symptoms in Cuba, China and Russia and suspected foreign spy agency is to blame. President Biden's nominee to lead the CIA. William Burns said it is confirmation hearing last week that he would make it a priority to find out who was responsible. Greg my RE NPR NEWS Washington