First. The Fukushima Dai'ichi nuclear disaster. There is still a large spent fuel pool on the top of the building of reactor 4. Another earthquake or tsunami in the area could tip the pool, releasing a large amount of radiation in the atmosphere. If it is large enough, it could spread across the Pacific and end life in North America. Additionally, all three molten cores are unaccounted for. Re-criticality could lead to a new nuclear explosion that releases massive amounts of radiation into the atmosphere. If it is large enough, it could end life in North America.
Are you pulling your worries out of thin air or do you have an actual source for your concerns?
By the way, there were no nuclear explosions at Fukushima Dai'ichi. The explosions were caused by the buildup of hydrogen.
While further problems at Fukushima Dai'ichi would be bad, "it could end life in North America" is ridiculous scare mongering worthy of a troll and not your usual level of discourse.
I'm pretty sure Beet is mocking the fear-mongers of both events there.
