Answer:
The Greenberg interview suggests that Brown vs. Board of Education was a very important case; the informational article does not.
Step-by-step explanation:
Brown vs. Board of Education case is based on inferior position of African American people, more specifically, having white and black kids going into separate schools - pure segregation. Lawyers who represented the Board of Education stated that nonwhites schools had the same standards, so they were separate but equal. Supreme court decided that statement is unconstitutional.
Greenberg was an American lawyer who helped with winning the case against segregation. Interview that he gave includes all the details about Thurgood Marshall and the case, while the informational text is based on a research and Greenberg interview.