The U.S. recently agreed to send controversial cluster munitions to Ukraine. Charlie D'Agata got a look at the devastation these weapons can cause at a clinic in Ukraine.

Eastern Ukraine — As he drank his coffee in the ramshackle clinic near the front lines of Russia's war on Ukraine, there was no telling what the day would bring for Dr. Oleksii and his skeleton staff.

Cluster headaches aren't that common, but they are extremely painful. And they often occur during the fall season. A cluster headache is a rare headache disorder that differs from a typical migraine ...