WEBVTT

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We are gonna start seeing more
attacks or attempted attacks on

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mass transit rail systems.
It's too attractive a target

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for terrorist, because it's an opportunity
to inflict a lot of casualties

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in spaces where people tend to gather in dense crowds

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and its also an opportunity to inflict
damage on critical infrastructure.

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And if you look at the security posture that we
have in place now, it's not sufficient.

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Because we are not performing the sort of
detailed screening that takes place

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in the aviation environments.
Mass transit security is a global problem.

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We are no less vulnerable here than they are overseas.

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This highlights the importance of developing

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tools that can assist the security staff on site

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to ensure that our systems stay as secure as possible.

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Our task is clear, we need a way to safely

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detect explosive threats on people and in their bags and
we have to do this without physically searching them

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or impacting their flow through the transit system.

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This is why the Department of Homeland

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Security, Science and Technology Directorate
has a program to mitigate the explosive threat

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to surface transportation. Here at S&T were developing

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a number of tools, among them a video algorithm
capable of automatically detecting bags left

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behind and tagging individuals who left those bags.

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We're also developing a suite of video forensic tools that
allow video surveillance systems to work more effectively

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and efficiently. We are also investing in stand-off

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threat detection systems using complimentary
parts of the electromagnetic spectrum.

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These systems will serve as a key component
of the layered screening concept.

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[Music]