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: @BillMoyersHQ Elderly belong w/family; our social system is broken.  This egregious 'Meancare' will shake it up, alas.
This tweet contains emotions: 
anger, disgust, pessimism, sadness