Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: Listening to these refugee children, barely a decade old, describe the horrific acts they were forced to commit is terrifying. #DatelineSBS
This tweet contains emotions: 
anger, disgust, fear, sadness