Please analyze the tweet "@LucasDrakeH @realDonaldTrump @GenFlynn @RandPaul @trump2016fan terrorist attack and terrorism already exists in the history of islam." and classify its emotional content. Choose from the following emotions: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If no emotions are detected, respond with "neutral or no emotion".
anger, disgust, fear