Shoppers pass Macy's department store, Thursday, Aug. 4, 2011 in New York. The back-to-school season got off to a strong start as discounts and sweltering heat in July drove shoppers to ... more 
Shoppers pass Macy's department store, Thursday, Aug. 4, 2011 in New York. The back-to-school season got off to a strong start as discounts and sweltering heat in July drove shoppers to air-conditioned malls. But retailers worry that momentum won't continue through the remainder of the second-biggest shopping period of the year. (AP Photo/Frank Franklin II) less 
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Associated Press | Photo By Frank Franklin II
Thu, Aug 4, 2011 3:48 PM EDT