Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture 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