Argentina's history is a continuous series of economic and political crises and they'll probably face another before the decade is out, but they still deserve a seat at the G20, writes a guest blogger.
An IED went off yesterday in the town of Khan Sheikhoun, damaging a UN observer convoy and killing at least 20 locals, but no UN observers. The government and opposition blame each other.
The six month rainy season gives time for Sudan and South Sudan to make progress in resolving differences. But the wet weather will strain the sanitation systems in refugee camps.
A new kind of bag for cowpeas in western Africa cuts weevil infestations and boosts incomes and productivity. Research on how to better grow crops is now being joined by research on how to reduce waste and spoilage after harvest.
The next president should include some military operations in his organized crime strategy, but focus on a transition back to civilian policing, writes guest blogger James Bosworth.