NEW YORK -- Putting a humanitarian spin on his remarks to an ANA audience, Wal-Mart CMO Stephen Quinn defended his company's massive expansion of is private-label brands. Earlier this year, the retail giant sparked a controversy in the food marketing industry when it unveiled a revamped "Great Value" brand line that includes more than 5,000 items in 100 grocery categories. Mr. Quinn said the effort was rooted in the company's desire to help customers who couldn't otherwise afford adequate food for their families.

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