text:  NATO Secretary General Jens Stoltenberg says Ukraine should be able to strike legitimate military targets inside Russia. The U.S. eased some restrictions to help Ukraine respond to Russian attacks on the Ukrainian city of Kharkiv. Michelle Kellerman, NPR News, the State Department. The popularity of a class of drugs used for weight loss is resulting in shortages in the U.S. NPR's Sidney Lupkin says it's affecting many people with type 2 diabetes.