Task: Assess the emotional content of the tweet and classify it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best represent the tweeter's mental state.
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