As I wrote last March, the company sells exploits non-exclusively to its collection of governments customers for use in intelligence and law enforcement surveillance.

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Abassi previously lived in Canada, traveled to the United States in mid-March and was under surveillance by law enforcement until he was arrested on April 22, said prosecutors.

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Law enforcement officials combed through photos and surveillance videos, searching for clues to who detonated the bombs.

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Secretary MICHAEL CHERTOFF (Department of Homeland Security): We have asked state and local leaders and transportation officials to increase their protective measures including additional law enforcement, police, bomb-detecting canine teams, increased video surveillance and increased numbers of inspection of trash receptacles and other storage areas.

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When combined with competent law enforcement, surveillance cameras are more effective, less intrusive, less psychologically draining, and much more pleasant than these alternatives.

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Every month over a thousand surveillance operations are carried out, not just by law enforcement agencies but by other public bodies like councils and quangos.

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However, a more comprehensive and regional effort is needed, he said, as the cartels, faced with increasing law enforcement surveillance in one area, will simply take their crimes elsewhere.

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