There's been a lot of talk this week about The Wall. It was one of then-candidate Trump's first promises. Now building the wall is part of the debate on an immigration bill. Over a decade ago, Israel built a wall of its own to stop terrorist attacks. We wanted to see the so-called "separation barrier" for ourselves and find out what America can learn from a wall that works. Full Measure contributing correspondent John Huddy reports from the Israeli/West Bank border.

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