If you're referring to the fall out from Hiroshima and Nagasaki then (a) I'm fairly confident both attrocites were reported and (b) by linking chemical weapons and radioactive fallout (two heinous crimes) you are being disingenuous and thereby creating a nonsensical argument on the subject of chemical weapons use.
You've certainly peddled plenty of fake news, hypocrisy and propagandist pish in this thread. But I wouldn't expect anything else from somebody who has voted to allow a bunch of right wing cunts destroy our country.