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: @TheDuranSite Russian mistrust of the U.S is well justified &amp; the precaution they've taken are very prudent.
This tweet contains emotions: 
anticipation, surprise, trust