The concerns range from condescending attitudes toward people of color to inequities of pay between international and local workers. The aid group's leaders have pledged to address the issues.
The class actions represent more than 1,000 migrants detained by the government on islands belonging to other countries, under contract with Australia.
The airstrikes killed 42 people at a civilian hospital in Kunduz, Afghanistan, in October 2015. U.S. officials say personnel attacked the wrong target.
The Pentagon's report says the Doctors Without Borders hospital attack in Afghanistan was an accident. The group's executive director, Jason Cone, says it raises more questions than it answers.
A medical aid group says U.S. airstrikes on its hospital in Kunduz amount to a war crime. Analysts say an investigation is needed, but diplomatic fallout is more likely than a war-crime prosecution.
