How North Korea could kill 90% of all Americans
A Hiroshima-type A-Bomb having a yield of 10-kilotons detonated in a major city would cause about 200,000 casualties from blast, thermal, and radiation effects. North Korea has tested a nuclear weapon having an estimated yield of 20-30 kilotons. The Defense Department assesses that on January 6, 2016, North Korea may have tested components of an H-Bomb. H-Bombs are much more powerful than A-Bombs and can produce much greater casualties—millions of casualties in a big city like New York.