Nagasaki, Japan was bombed by atomic bombs. Is it safe to travel now?

It's okay. You can totally go. Absolutely safe.

According to some data, American and German scientists secretly collected soil samples in Hiroshima and Nagasaki (the sampling time was not mentioned in the data). After returning to China, it was found that the soil quality of these soils was almost the same as that of ordinary soils, and the radiation measurement was not out of line. That is to say, there is no radioactivity there, which cannot be compared with the radiation dose of soil samples collected by the nuclear experimental base (the radioactivity in the soil of the nuclear experimental base can last for decades). Coupled with other factors, some people think that Hiroshima and Nagasaki have never been bombed by atomic bombs.