human trafficking, Social Work Question help

Please watch the following online video pertaining to human trafficking: 

As you are watching this video, think about the materials pertaining to human rights and social and economic justice. What might be some of the barriers to social justice that a social worker would face when providing services to survivors of human trafficking? How could a social worker who is providing services to a survivor of human trafficking pursue social justice? How could a social worker providing services pursue social justice?