OTTAWA - A Chinese maker of surveillance camera systems is appealing a federal government directive ordering it to shutter its Canadian operations due to national security concerns.

OTTAWA - A Chinese maker of surveillance camera systems is appealing a federal government directive ordering it to shutter its Canadian operations due to national security concerns. Hikvision said ...

Continuous radio surveillance, detection of UAV signals and the formation of counteraction signals in the protected area occurs through three independent channels, which allows at least three drones ...

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