One of the great problems that Williams faces in admissions is attracting enough/any African-American applicants will Williams-caliber credentials. Partly, this is because Williams, because of its location and size, is less attractive (on average) to African-American applicants than it is to other applicants. (The same is probably true for international students). But, much more important is the intense competition for elite African-American students from schools like Harvard/Yale/Princeton/Stanford. Almost any African-American applicant with the high school grades and standardized test scores which would place her in the normal range for academic admission (AR 1 and 2) will be accepted at one or more of HYPS. (This is not true of, say, Chinese-American applicants.) Since 90% of applicants (and probably a higher percentage of African-American applicants) admitted to the College and one of these 4 choose HYPS over Williams, this means that Williams has little choice but to accept many African-American applicants who we would not accept were they Chinese-American.
The only practical solution to convince such students to choose Williams is to make it worth their while. And the Tyng (money for graduate school and extra money while at Williams) is the best method available. Therefore, the College should award almost all Tyng Scholarships to African-American applicants, thereby luring 4-8 African-American applicants away from HYPS and to Williams each year. (With luck, HYPS won’t feel compelled to match our offers.) For legal reasons, Williams might need to make an occasional offer to someone who was not African-American, but I doubt that the Department of Justice would be making trouble against these sorts of efforts anytime soon.