— and scary

Nick Imearato, a research fellow at the Hoover Institute, said he expects the federal government to require cameras be placed every 400 feet or so in airports to monitor all aspects of airport security, from cargo areas to boarding areas. Over time, as the technology gets cheaper, he said, “This will migrate to millions of businesses and even homes.”

Such constant surveillance, even in the name of homeland security, scares civil libertarians, who feel it amounts to an illegal search of everyone who passes within view of a camera. San Jose Mercury News