FILE - In this Friday, Feb. 1, 2013, file photo, the sun rises behind a Walgreens drug store in Omaha, Neb. Walgreens reports quarterly earnings on Tuesday, Oct. 1, 2013. (AP Photo/Nati Harnik, File)

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FILE - In this Friday, Feb. 1, 2013, file photo, the sun rises behind a Walgreens drug store in Omaha, Neb. Walgreens reports quarterly earnings on Tuesday, Oct. 1, 2013. (AP Photo/Nati Harnik, File) less