>>16220334 (lb)
>>16220337 (lb)
This WaPo article doesn't appear to be hindered by paywall nonsense; probably because age? Could be something, could be nothing. Check that date, yo. Another thing to consider about "PSYWAR". If it wasn't effective, if it didn't work, if it didn't leave to a mutual interest in saving as many lives as possible and bringing an end to conventional warfare, they wouldn't keep working on it:
https://www.washingtonpost.com/archive/lifestyle/2001/12/10/when-bombs-are-not-enough/b422ecf8-19c0-4139-921d-569783dba2b7/
When Bombs Are Not Enough