Some Google observers are concerned that a new privacy policy announced by the Web search giant may contain holes that could make it possible to connect search logs to the names of users, potentially defeating the purpose of Googleâ€@trade;s plan to make records about user searches anonymous after 18 to 24 months.

Google will alter cookie information and change the last eight bits of the 32-bit IP addresses that identify computers logged onto the companyâ€@trade;s search engine, under a policy announced last week.

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