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Security Since Sept. 11: Worth The Cost?

A U.S. Capitol policeman performs a security sweep of the Capitol Dome and roof ahead of President Obama's speech to Congress on Thursday. The U.S. is spending more than $70 billion on homeland security this year, up from $20 billion a decade ago. (AFP/Getty Images)
A U.S. Capitol policeman performs a security sweep of the Capitol Dome and roof ahead of President Obama's speech to Congress on Thursday. The U.S. is spending more than $70 billion on homeland security this year, up from $20 billion a decade ago. (AFP/Getty Images)

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