Most Americans would not agree with this being the greatest threat.
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Not radical Muslim terrorism, not an unsecured border, not an ever-growing federal debt that now exceeds $18 trillion, not the fact that 109 million live in households on federal welfare programs. These are not the greatest threats facing us today.

“No challenge–no challenge–poses a greater threat to future generations than climate change,” President Obama declared in his State of the Union Address on Tuesday night.

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