at first stith blamed a prior conc concussion, but soon became so unsteady, she fell down the stairs.y mom. and honestly, she had been asking me for six months, this havana syndrome, do you think you have a it? >> reporter: a mysterious set of neurological and cogtive ailments named among cases reported among diplomats the u.s. embassy in cuba. >> it is a well conceived global program to attack americans. >> reporter: former deputy national security adviser charles copperman tracked suspected havana syndrome attacks for the trump administration. >> the number, if you include family members is close to a thousand. >> reporter: a thousand people? >> uh-huh. >> reporter: and not just overseas. copperman said two government staffers were attacked here just steps from the white house. >> it tells us that somebody is very serious about sending us a message that they can reach out and do very bad things to our employees at the highest levels. >> reporter: last year president biden signed legislation for medical and financial help. >> my administration is coordinating a government-wide effort