Is Japan's nuclear radiation serious now? Consider whether to travel there.

I planned to travel to Japan the other day, and I have done enough homework. However, when we heard a few news, our trip was cancelled immediately: 1. A friend went to Japan on a honeymoon and was warned not to have children for five years after returning home. Because the influence of nuclear radiation is potential and intangible, it may not be discovered for several years but it is afraid of a long-term potential crisis. The current situation between China and Japan is unstable, which may have little impact on this kind of tourism and cultural exchange among the people, but in such a tense situation, we are afraid of what will happen. Japanese people have always been very smart. I saw some netizens say that air tickets are discounted and so on. At present, I heard that some places in Japan are visa-free for China people or something. I think this purpose is not simple. So don't go to Japan at present, consider other countries. There are still many interesting places in Asia ~