Can the federal government be sure its AI isn't biased?

For example, OSTP pointed to the Department of Homeland Security's work, writing that to "keep ahead of the curve and ensure that use of AI does not unfairly or illegally disadvantage individuals" it is "applying and extending" its existing tools and frameworks, but offering no real insight into how those frameworks were applied, considered successful, or enhancing research. It also wrote that DHS' Science and Technology Directorate had "identified bias and fairness in AI systems as priority issues," without elaborating on how specifically that's guided research and development.