OCPA is short for Office of Public and Congressional Affairs.
CTE stands for Chronic Traumatic Encephalopathy, it is a neurodegenerative disease caused by repeated trauma to the brain. Symptoms often include behavioral problems, mood swings, difficulty controlling emotions and difficulty thinking. The damage usually occurs to the part of the brain responsible for impulse and emotional control, which can cause uncontrollable emotional and physical outbursts, even violence. As the condition worsens it often results in dementia.