One bomb [...] does a pretty good job of destroying just about everything at ground zero Did you read my links? The Hiroshima bomb destroyed old buildings, not

One bomb [...] does a pretty good job of destroying just about everything at ground zero Did you read my links? The Hiroshima bomb destroyed old buildings, not modern buildings. Nearly 800 people survived near ground zero in modern concrete buildings, despite blast overpressures of 15-20 psi. http://glasstone.blogspot.com/2008/05/philip-j-dolans-formerly-secret.html http://glasstone.blogspot.com/2008/05/philip-j-dolans-former... in two reinforced concrete office buildings, at [distances between 0.3 and 0.4 mile from ground zero in Hiroshima], almost 90 percent of the nearly 800 occupants survived more than 20 days, although some died later of radiation injury. [...] of nearly 5,000 students [within a mile of ground zero at Hiroshima] who were shielded in one way or another, only 26 percent were fatalities. ... survival in Hiroshima was possible in buildings at such distances that the overpressure in the open was 15 to 20 pounds per square inch.