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"As a general principle, bookstores should not be selling dossiers on their customers' reading habits," the letter to officials said.
Amazon reached an agreement with state regulators last month to curtail the sharing of consumer information with third parties after coming under pressure from consumer groups, privacy advocates and government authorities. But despite the deal, some privacy groups are claiming that Amazon still has not done enough to protect consumers' personal information, and are requesting that authorities take further measures to restrict the e-tailer's use of consumer data.
In their letter, the Electronic Privacy Information Center (EPIC) and Junkbusters asked regulators to require Amazon to obtain customers' consent before transferring personal information in the event that it sells one of its business units, and allow consumers to access and delete certain purchase records or disassociate themselves from their transactions.