Civil-liberties activists are concerned about how this technology could be abused.

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Pentagon officials have said they are concerned about Iran possibly acquiring information about the technology.

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However some are concerned about safety and privacy issues of the new technology.

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The groups are especially concerned about the definition of "Internet access, " which determines whether a technology can be taxed locally.

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Utilities, however, are concerned about being able to recover the investment needed to switch to this new technology, and about potential backlash when customers see on their bills that they are paying much more to run their air conditioners on so-called "critical" days--like the dog days of August.

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In the 1980s, Congress was growing increasingly concerned about the competitiveness of U.S. industry, particularly with respect to the timely transfer of technology from government labs to the private sector.

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Concerned not only about colorizing but the whole cornucopia of changes to existing films that are now possible with computer technology, Hollywood directors have been lobbying Congress for protection of the integrity of their work.

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