So-called neutron bombs are hellish extra-radioactive weapons. Even I'd wanna minimize radiation, not maximise it. Whole reason nukes don't get used is the radiation. If they had no radiation they get used all the time.
I think you mean contamination, not radiation. Nuclear weapons should be banned because of the radiation deaths they cause and contamination.
Nuclear weapon radiation is short-lived. Compared to say a reactor's meltdown which results in dead zones for centuries. Can visit nuclear test sites and walk around. Wouldn't propose moving there like, but it's not a no-go zone for the rest of time. And if you airburst them fallout's minimal. The fallout occurs when the detonation sucks up earth and irradiates it. Then it falls back to earth, or gets carried with wind patterns where ever. Airburst high enough eliminates that aspect.
Again, I think you are mixing radiation with contamination.
Here is an article on the subject and a snippet from the article. Again, contamination from an air burst nuclear weapon, they are all air burst, spreads across the world. A nuclear melt down of a power station tends to stay localized, if we are very lucky. Chernobyl was only found out by the world after the radioactive cloud moved over, I believe, Sweden.
What's the damage?
In the contaminated regions around Chernobyl, for example, there has been a sharp increase in thyroid cancer, severe mental retardation due to prenatal exposure, and genetic damage in human, animal and plant life.
Increases in the rates of radiation-related cancers have been documented in military personnel involved in nuclear tests, and also within communities downwind of test sites in Australia, Kazakhstan, the US, and the Micronesian Pacific Islands. It is estimated that due to atmospheric testing alone, 430,000 fatal human cancers had been produced by the year 2000, and that eventually the total will be 2.4 million.