See, e.g., EEOC Race Discrimination Guidance, Part 15-VI(A)(4) (“The process of screening or culling recruits presents another opportunity for discrimination. Race obviously cannot be used as a screening criterion.”). 42 U.S.C. § 2000e-2(a) (employers); § 2000e-2(b) (employment agencies); § 2000e-2(d)