"We won't heal until we make sense of the crack epidemic," Donovan X. Ramsey says. His book, When Crack Was King, examines the drug's destructive path through the Black community.

NATO's expansion is the exact opposite of what Russia wanted, says Secretary-General Jens Stoltenberg. He spoke to NPR about its NATO's newest members, and when Ukraine might join them.

From convenience stores to online, the tablet "will be an available option for millions of people in the United States," the director of the FDA's Center for Drug Evaluation and Research says.

Guatemala's already troubled presidential election has been thrown into more chaos and confusion only weeks ahead of a contentious second round of voting.