NPR reports that some major tech companies are looking to Congress to update the Electronic Communications Privacy Act of 1986 (ECPA) to give it more clarity and consistency. Under ECPA, authorities don't need a warrant to access older e-mails and stored content has different protections than communications--which can be a confusing distinction. Jim Dempsey of the Center for Democracy and Technology says the industry has a financial interest in clarifying the law; "their business depends upon the trust of their consumers," he says, adding, "they're constantly facing from Europeans and from others...'our data is not secure if we trust it to an American company.'"    
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