Economic Justice

During the last Democratic Party Primary debate, there was one theme ALL the participants could agree on: Something terribly wrong and unjust has taken place in the American socio-economic experiment. Governor O'Malley stated, "there is profound economic injustice" in America. Hillary Clinton wants to "save capitalism from itself," and Bernie Sanders stated that "the current system is totally unjust." Common to all the participants is the belief in "economic justice and injustice." But, what is "economic justice"? And, does it exist in the philosophical lexicon of Liberal- Capitalism?