Who was Michael Brown and which people was he talking about when he made the comment we're seeing people that we didn't know exist why did the author describe Brown's comment as accidental honesty?

Michael Brown was a former head of the Federal Emergency Management Agency (FEMA). He made the comment "we're seeing people that we didn't know exist" in reference to the victims of Hurricane Katrina. The author described Brown's comment as accidental honesty because it unintentionally revealed his lack of awareness of the difficulties faced by the marginalized and vulnerable communities affected by the disaster.