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View of the San Onofre Nuclear Power Plant in north San Diego County.

Japan's continuing nuclear crisis has left the world nervous over nuclear power, just as many were touting it as a low-carbon energy source. California has a long-standing moratorium on any new nuclear power plants. But an effort to challenge that is underway in Fresno, where some investors are pressing on, in spite of the ban. KQED's Sasha Khokha reports.