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How Does the U.S. Classify Its Most Sensitive Documents?
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There are three levels of security classification for U.S. documents related to national security. What are they and who decides how they're protected against unauthorized disclosure?
The Anatomy of a U.S. Presidential Motorcade
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The U.S. president requires constant security, especially when traveling. HowStuffWorks takes a look at what goes into the presidential motorcade.
Dodecahedron: The 12-sided Shape With the 12-letter Name
science.howstuffworks.com/math-concepts/dodecahedron.htm
A dodecahedron has 12 flat faces, all shaped like pentagons. Here are 12 cool things you just may not know about them.
Lockheed SR-71 Blackbird
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The Lockheed SR-71 Blackbird is considered the most effective reconnaissance aircraft in history. See specifications for this classic airplane.
Why 79 Percent of American Vegans are Women
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An overwhelming majority of vegans in America are females. HowStuffWorks explores the connection between women and veganism.
Vending Machines Bring Books and Learning to 'Book Deserts'
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Despite the established benefits of reading, books aren't accessible to everyone. One new study tried to change that with book vending machines.
Inside the CIA's Treasure Trove of bin Laden Files
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The CIA's 470,000 files belonging to Osama bin Laden offer a window into his final years. Behind the Bastards looks at some of the most curious.
Give Her a Gift that Will Win Her Heart
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Give her a gift that will win her heart if you want to form a relationship. Learn how to give her a gift that will win her heart.
Self-Discovery Through Journaling
health.howstuffworks.com/wellness/women/general/self-discovery-through-journaling.htm
Self discovery through journaling could help you learn about yourself. Read about self discovery through journaling at Discovery Health.
Nearly 1,000 U.S. Streets Named After MLK Jr. What Are They Like?
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Researchers investigated the racial makeup and economic well-being of 22,286 census blocks in the U.S. with roadways bearing Dr. Martin Luther King Jr.'s name. Here's what they found.