Given a text, write a compressed version of it in a single sentence.
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Question: This assessment is based on an extensive review of FBI files and interviews with agents and supervisors at FBI Headquarters and various field offices.

Answer: This assessment is based on an extensive review of FBI files and interviews.

Question: Thirty-five years is a long time to have been a part of the law school community. As a '56 graduate, I have since witnessed many changes in both legal education and the law school.

Answer: As a '56 graduate, 35 years in the law school community,I have since witnessed many changes in both legal education and the law school.

Question: For a membership gift of just $15, you will receive a full year of the world's most beautiful nature magazine, NATIONAL WILDLIFE.

Answer:
1-year membership to the nature magazine National Wildlife for only $15.