[241] 3 Hour US Air Force Range

The vast majority of the earth's territory can be reached by American jets within 3 hours due to a global network of air-bases and aircraft carriers.

[235] Prison Populations

The U.S. has recently usurped from Russia the dubious honor of highest rate of incarceration - almost 700. The number of inmates per 100,000 of the national population is represented for each country. 142 is the world average.

[231] DNA Traces

Population geneticists have traced the human family tree to an ancestral homo sapiens community of only 2000 breeding individuals living in Africa, which began splitting up approximately 144,000 years ago and migrating to Asia and Europe before the Americas. Analyses of mitochondrial DNA passed from mother to child have identified only one female (a mitochondrial “Eve”) at the root of the mDNA family tree represented by orange lines; other lineages fell extinct. Y chromosome sequences passed from father to son are represented by green lines and go back to a single chromosonal “Adam.” It is believed that 10 principle branches in the Y chromosome tree may correspond to the world’s major language groups.