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: White Americans are worried about Arab terrorists. Black Americans are fearful of a terrorist in a Police uniform on a daily basis.
This tweet contains emotions: 
anger, disgust, fear