More: Napolitano Admits Airport Screening Failure
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CBS: Secretary of Homeland Security Janet Napolitano has backed off comments she made on Sunday on CNN saying that "the system worked" in response to questions about how a would-be-bomber got explosive material aboard a Detroit-bound flight on Christmas Day.
"Obviously this individual should not have gotten on the plane carrying that material. And we can explain all of the reasons, but they're not satisfactory," Napolitano said on CBS' "The Early Show" Monday.
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