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: @Mc_Cabe_Conor This is it. The complete illiteracy around the role, nature and extent of British agents is shocking.
This tweet contains emotions: 
anger, disgust, surprise