"The myth of national homogeneity." PARIS - Last year, a French sociologist answered 258 help-wanted ads for salespeople by sending nearly 2,000 fictitious resumes with identical qualifications, and photos attached, as is the custom here.Faring poorly, among others, were members of France's most disadvantaged minority group - Arab Muslims.White males with French names received an invitation to interview at a rate of 30 percent, compared with just 5 percent for people with Arab names.In the United States, such findings might be met with a renewed commitment to affirmative action and vows by the government to continue prosecuting illegal hiring discrimination....