At the risk of being pummeled to death, it's time to clear some of the air here.
1. If you disassociate yourself from all political positions previously or currently embraced or presented by Boroda, he is factually correct. He never said anything so preposterous as there was no radiation leak, or that it is good for anyone. That is blatant misrepresentation or stupidity.
His issue was birth defects.
Widespread congenital birth defects in subsequent generations did not occur, as it did not occur in Hiroshima and Nagasaki. In-vitro exposure did, and does, cause birth defects. The same is true of chemical exposures such as those caused by massive and continured exposure to dioxin as found in Agent Orange and heavy metal exposures such as Mercury and Nickel.
Continued exposure during formative years have also increased the cancer rate dramatically. These are not birth defects, they are exposure effects.
The 1950s Cold War propoganda about extensive, multi-generational, mutational, genetic damage to humans was not true. Just like the propoganda that exposed areas would be barren of life for tens of thousands of years. There is plenty of life in Hiroshima and Nagasaki. And no beastly genetic mutations like in the Hollywood movies.
2. How many people have died from the incident, or will have a shortened life expectancy, will always be questioned and defined differently. I don't know if anyone will really know.
3. Will it ever be cleaned up? The scale of exposure and lack of money to do it will probably yield an answer of, 'No.' It is cheaper to isolate than to clean it up. It is just as true in small scales as large.
You can pound away at his political beliefs, but he is not wrong about birth defects in subsequent generations. Exposure effects abound, though.