Culture | People | Agencies

Agencies are various organizations or entities within the government. Learn more about agencies like the FBI, foster care, the Postal Service or Customs.

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How the U.S. Postal Service Works

The U.S. Postal Services delivers 213 billion pieces of mail a year. But will e-mail someday triumph over snail mail? And how do your letters get to the right place?


The Ultimate SCOTUS Quiz

The Ultimate SCOTUS Quiz

The Supreme Court judges leave major marks on our country and history each day. Prove how much you know about these powerful nine at HowStuffWorks. See more »

How the FDA Works

How the FDA Works

How does the FDA keep us safe? Learn how the Food and Drug Administration works and explore some of the agency's successes and criticisms. See more »

How Numbers Stations Work

How Numbers Stations Work

If you've ever heard random numbers on a random empty radio frequency, you may have heard a numbers station. Find out about these cryptic broadcasts. See more »

The Ultimate Female Spy Quiz

The Ultimate Female Spy Quiz

Women have a long history as spies, couriers and code breakers. Take the Ultimate Female Spy Quiz to test how much you know about these sneaky women. See more »

Flying High: Air Force One Quiz

Flying High: Air Force One Quiz

This Air Force One quiz will test your knowledge of one of the most famous planes in America. Check out this Air Force One quiz. See more »

The Ultimate FBI Quiz

The Ultimate FBI Quiz

This FBI quiz will test your knowledge about this U.S. government agency. Check out this FBI quiz from HowStuffWorks. See more »

Spy Pictures

Spy Pictures

Spy pictures show the secretive world of intelligence gathering. Check out this collection of spy pictures. See more »

How the EPA Works

How the EPA Works

The EPA was established in order to protect human health and the environment. Learn more about the EPA and some of the duties the EPA performs. See more »

11 Terms Used by Spies

11 Terms Used by Spies

Maybe you're involved in a covert operation. Maybe you're just curious. We don't need to know, but you should learn the 11 terms used by spies here. See more »

How U.S. Marshals Work

How U.S. Marshals Work

The U.S. Marshals Service is the oldest law enforcement agency in the nation. Learn about famous U.S. Marshals and the duties and history of the U.S. Marshals. See more »