https://www.justsecurity.org/44289/sonic-attacks-diplomats-cuba-dont-rush-conclusions/ https://www.justsecurity.org/44289/sonic-attacks-diplomats-c... this sug

https://www.justsecurity.org/44289/sonic-attacks-diplomats-cuba-dont-rush-conclusions/ https://www.justsecurity.org/44289/sonic-attacks-diplomats-c... this suggests it might be more of an accident than an intentional attack (ie. weapon)