https://www.newsweek.com/are-hiroshima-nagasaki-still-radioactive-nuclear-1751822
Today, both cities are bustling urban centers and radiation levels there are on par with the general levels of background radiation experienced the world over.
I’ve been to Hiroshima on business a couple times. It is a charming bustling city today.
They do recognize that young people do not know of the bomb to the extent middle age and elders do.