Cuba attack victims have brain abnormalities

Officials backing off of ‘sonic weapon’ as cause of problems

WASHINGTON — Doctors treating the U.S. Embassy victims of suspected attacks in Cuba have discovered brain abnormalities as they search for clues to explain hearing, vision, balance and memory damage, The Associated Press has learned.

It’s the most specific finding to date about physical damage, showing that whatever it was that harmed the Americans, it led to perceptible changes in their brains. The finding is also one of several factors fueling growing skepticism that some kind of sonic weapon was involved.

Medical testing has revealed the embassy workers developed changes to the white matter tracts that let different parts of the brain communicate, several U.S. officials said, describing a growing consensus held by university and government physicians researching the attacks. White matter acts like information highways among brain cells.

Loud, mysterious sounds followed by hearing loss and ear-ringing had led investigators to suspect “sonic attacks.” But officials are now carefully avoiding that term. The sounds may have been the byproduct of something else that caused damage, said three U.S. officials briefed on the investigation.

Physicians, FBI investigators and U.S. intelligence agencies have spent months trying to piece together the puzzle in Havana, where the U.S. says 24 U.S. government officials and spouses fell ill starting last year in homes and later in some hotels. Secretary of State Rex Tillerson said Wednesday that he’s “convinced these were targeted attacks.”