For decades now, the evolving role of congressional oversight of US intelligence has involved major clashes and scandals, from the Iran-Contra affair of the 1980s to the intelligence abuses that led to the 2003 war in Iraq.
The destruction of the Amazon rainforest can have global ramifications and some are arguing that those responsible should be prosecuted.
While hurricanes can be disastrous for people, river fish may be benefiting from them. See how Puerto Rico's fish thrived after Hurricane Maria.
While private companies have little incentive to treat and cure many diseases, nonprofits have the potential to save lives by providing valuable funding to help society's most vulnerable people.
Despite the amount of lives saved by the Sabin polio vaccine, in rare cases, illnesses can still occur. New research is looking to make the vaccine even safer.
If the United States is to remain a leading world power into the future, it must be economically productive and competitive on the world stage in ways that go beyond military firepower.
The UN peacekeeping mission in Rwanda seemed straightforward at first. But as the mass killings began, the UN ordered its blue helmeted troops to evacuate foreigners — but not intervene to save the Tutsis from slaughter.
Dozens of countries and hundreds of firms and nonprofits are fed up with digital violence. They are working toward greater cybersecurity for all — and even what might be called cyberpeace.
Colombia could be heading for "a new armed struggle." How did this happen? These six stories outline Colombia's complicated peace process.
What's the history behind one of today's most commonly used words?