President Obama has said that the use of chemical weapons could change the U.S. response to the Syrian civil war. But why this focus on chemical weapons when conventional weapons have killed tens of thousands in Syria?
The answer can be traced back to the early uses of poison gas nearly a century ago.
In World War I, trench warfare led to stalemates — and to new weapons meant to break through the lines.
In this image taken from video, South African President Jacob Zuma sits with ailing anti-apartheid icon Nelson Mandela on Monday. Mandela was hospitalized in late March with a lung infection, and in images from the visit, appeared largely unresponsive.
In South Africa, controversial images of a frail and ashen Nelson Mandela being visited by South Africa's current president aired on national television this week. Some people claimed it was a political publicity stunt.
The footage is fueling fresh debate about what is proper and what constitutes invasion of privacy regarding the ailing, 94-year-old former president and anti-apartheid legend.
President Jacob Zuma, accompanied by two other top officials of the governing ANC party, visited Mandela at his Johannesburg home on Monday.
Afghan President Hamid Karzai acknowledged a report this week that the CIA has regularly been sending him money. Afghans seem to have mixed feelings. The president is shown here speaking at an event in Kabul on March 10.
After a report inThe New York Times this week, Afghanistan President Hamid Karzai has acknowledged that the CIA has been secretly delivering bags of money to his office since the beginning of the war more than a decade ago.