After almost five months of conflict, the Ukrainian government and pro-Russian separatists have signed a truce to end the fighting. More than 2,600 people have died in the violence between the two sides, and hundreds of thousands have been forced from their homes.
President Obama and other NATO leaders are returning from Wales, after two days there spent discussing the future of the organization. The summit touched on topics that ranged from Ukraine to the Islamic State in Iraq and Syria.
Half-brothers Henry McCollum and Leon Brown were convicted of rape and murder in 1983. This week, they've been exonerated, after DNA analysis implicated someone else. To learn more about the case, and the work that went into their exoneration, Audie Cornish speaks with Kendra Montgomery-Blinn, the executive director of the North Carolina Innocence Inquiry Commission.