Frank Wu, dean of Wayne State's law school and an author on race issues, was part of a panel of speakers on Wednesday at a symposium hosted by the newly formed Macomb County Coalition for Affirmative Action at the Macomb Intermediate School District. Wu said passage of a controversial affirmative action ballot proposal would \"close the door forever\" on social progress gained in past decades for women and minorities. He said the Michigan Civil Rights Initiative, which goes before voters statewide in November, threatens progress accomplished by affirmative action programs. \"The vote will either keep the door open or close it forever to a large segment of the population,\"