
The US national public health institute, Centers for Disease Control and Prevention, has an actual plan in case of zombie invasion.
29
There are two credit cards for every person in the United States.
2
The United States consumes 25% of all the world's energy.
51
A Native American tribe in South Dakota collects bottle caps left by campers, using them as currency. Several banks in the area now recognize the caps as legal tender.
225
Although African-Americans make up only 13% of the U.S. population, they accounted for one half of the estimated new HIV/AIDS diagnoses in 2004.
70
Theodore Roosevelt read at least one book every day.
22
Forest growth in the US has exceeded harvest since the 1940’s. Today, we have more trees than any time in the past 100 years.
14
