teenager trayvon martin. we're just a few days away from black friday. but many of those holiday discounts are a dirty trick. it's part of a plan where they raise prices earlier in the year and lower them for the sale. and it's working. almost 90 million people shops last black friday. analysts say they expect a record 97 million people to shop this black friday. sarah murray is here, a reporter for "wall street journal live." so is it a scam? >> let's just say you're not getting the deal you think you're getting. a lot of that discount is priced in ahead of time. it's not like retailers are suddenly taking a big hit to their profit because they're marking something down 40% for