Generalities about "minority students" can easily hide specific issues related to various ethnic and racial groups -- and the ways they do and do not advance in the American educational systems. The Latino Education Crisis: The Consequences of Failed Social Policies, just published by Harvard University Press, is a scholarly attempt to focus on one fast-growing ethnic group.
If members of some minority groups are admitted to elite colleges because of affirmative action -- and don't perform as well as they expected -- does this show a serious flaw in efforts to diversify student bodies?
The "10 percent" plan in Texas has been one of the most successful experiments ever tried to get more minority students into top public universities with race-neutral criteria. It spawned similar (if less ambitious) programs in California and Florida and prompted numerous debates about equity in higher education admissions.