As part of an effort to improve chemical security, the Department of Homeland Security this week will send out letters to 7,000 facilities informing them that they are designated "high risk." Chemical groups have expressed concern about the regulatory process, but some said they support the department's effort. An American Chemistry Council spokesman said ACC supports extending the DHS' authority beyond the 2009 sunset. "It's in everybody's interest to make sure that everyone is secure," he said.
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