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: @Varneyco @SheriffClarke I agree. Rioters destroy property, injure citizens, and threaten lives. We need a zero tolerance policy on riots.
This tweet contains emotions: 
anger, disgust