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Cisco's ISP wiretap needs hardware

    In response to the April 21 Perspectives column by Declan McCullagh, "Inside Cisco's eavesdropping apparatus":

    I strongly believe that such ("lawful interception") capability should require some sort of hardware-enabling device. The hardware enabler can be a daughter card or a module inserted into an open slot.

    To merely allow a software image to provide that capability will not stop it from crossing borders and from being abused greatly. In order to limit the export of this capability, a hardware device would greatly reduce it; how can you restrict a software image from being sent through the Internet to a nonfavorable nation?

    Richard Bell
    Irvine, Calif.