Boeing, SBInet reach critical phase

Two years since its inception, the first permanent segment of the Homeland Security Department's SBInet surveillance system is about to be installed in southern Arizona, and the stakes could not be higher. At a projected cost of $8 billion for the system on the U.S./Mexico border, SBInet has been praised as offering a decisive edge to border protection, but it is also distrusted as experimental.

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