Numbers from the World Health Organization put Sierra Leone at the top of the list for cases of Ebola. Yusuf Mackery explains what's being done to prevent infection and raise public awareness.
As the deadly Ebola virus outbreak continues to spread, affected nations are imposing drastic new measures to try to contain the infection.
The world's newest country has been roiled by ethnic and political clashes, as well as famine. The U.S. and other African heads of state are pressing the country's president to make peace with rebels.
Russia reacted to Western economic sanctions by imposing a yearlong ban on U.S. and European food products. Moscow also made clear it's still considering other measures.
The National Weather Service is forecasting that for the first time in 22 years, Hawaii will be hit directly by a hurricane — two, in fact. Hurricane Iselle is expected to make landfall soon, and Hurricane Julio is right on its tail.
The White House is considering several military options to address an emergency humanitarian crisis in northern Iraq. The administration may approve either air strikes or airdrops of food and medicine to help tens of thousands of refugees stranded on a mountaintop.
After a week of fighting and conflicting accounts, militants with the Islamic State have reportedly captured Iraq's largest dam. The development spells danger for much of Iraq's civilian population.
The Khmer Rouge terrified Cambodia when the group ruled the country in the 1970s. On Thursday, the two most senior surviving leaders of the regime received life sentences for crimes against humanity.
Calls for security at the border have intensified as an unprecedented number of migrant children have started crossing into the U.S. Texas Gov. Rick Perry is sending 1,000 National Guard troops to the area, but border security is more complex than it appears.
Collecting data about people has become $1 trillion industry, but keeping this information safe is proving near impossible. So, a small group of entrepreneurs and developers are building new technologies that don't rely on data as a digital currency.
The Obama administration is exploring ways to prevent U.S. businesses from relocating abroad to save money on taxes. Treasury Secretary Jack Lew indicated that Congress would need to act, but now the administration says it is looking for ways to act on its own.
War's toll on Gaza has been brutal, claiming civilians' lives and leveling buildings. But Hamas and many Gazans say the conflict was necessary, because they had run out of options in negotiating. If Palestinians come away with concessions after peace talks in Egypt, many think the damage will all have been worthwhile.
The Yazidis are an ancient religious sect concentrated in a remote corner of Iraq. They've been thrust into the spotlight of Iraq's nasty conflict, with thousands taking refuge in barren mountains.