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: Don't understand reason for #Muslim countries citing #terrorism as reason for not taking #refugees. Aren't #terror attacks against infidels?
This tweet contains emotions: 
disgust, fear, pessimism