(THE CONVERSATION) The United States’ national parks have an inherent contradiction. The federal law that created the National Park Service says the agency – and the parks – must “ conserve the ...

Slightly less than half of U.S. adults believe that Black people face "a great deal" or "quite a bit" of discrimination in ...

The radioactive isotopes even at low levels can be recognized by radiation detectors at airports and borders, leading to the arrest of poachers and traffickers.