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Safest fish to eat, fish to avoid
1795 -- The Naturalization Act restricts U.S. citizenship to "free white persons" who live in America for at least five years and renounce their allegiance to their former country.
With Texas Gov. Rick Perry sending National Guard troops to the border, look back at the tumultuous history of immigation in America.
The grade is in on Hawaii's Renewable Energy Report Card.
NASA will make a "major announcement" later Tuesday about its plans to partner with the private sector to transport astronauts to the international space station.
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