The pact calls for the "immediate cessation of hostilities." The world's youngest country has been roiled by ethnic violence since December. Thousands have been killed and 1.3 million are displaced.
The balloon hit power lines, and images showed the basket on fire. Witnesses said they heard an explosion and saw people falling from the balloon.
Chinese characters don't readily work with the English-centric Internet. The New Republic's Chris Beam tells NPR's Scott Simon that the Chinese use numbers that when pronounced, sound like words.
As state-run TV cheers Vladimir Putin, cable providers have dropped Russia's last independent channel. NPR's Scott Simon interviews the editor of Dozhd TV about its struggles to stay on the air.
Mexican civilians in Michoacan State have taken up arms to fight the murderous Knights Templar cartel. Saturday is the deadline for vigilantes to register their weapons with the police.
The U.S. is advising Nigeria in the search for the girls kidnapped by Boko Haram. But Africa expert Paul Lubeck tells NPR's Scott Simon he doubts the Nigerian government can make good use of the aid.
Sunday's referendum in eastern Ukraine comes as fierce battles are waged in the port city of Mariupol. A vote for independence may calm tensions, but it might also bankrupt the economy.
In a Mother's Day address, first lady Michelle Obama said the U.S. is committed to standing up for the girls and their right to an education.