The next generation of E-mail filters, say HCI researchers, will be "gradation" filters that delay notification or delivery of certain e-mails to avoid bothering the recipient.

HCI研究人员说下一代邮件过滤器是能够延迟通知和发送某些电邮的“分级”过滤器，以免打扰接收者。

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It does, however, allow agents to search premises but delay notification of the search to subjects of a terrorism investigation.

CENTERFORSECURITYPOLICY: Preserve the Patriot Act

Iran's delay in notification was "inconsistent with its obligations", the report said.

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