Task: Categorize the tweet's emotional tone as either 'neutral or no emotion' or identify the presence of one or more of the given 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