In a budding trend some employment experts say is invasive, companies are stepping up electronic monitoring and oversight of tens of thousands of home-based independent contractors.

They’re taking photos of workers’ computer screens at random, counting keystrokes and mouse clicks and snapping photos of them at their computers.

They’re plying sophisticated technology to instantaneously detect anger, raised voices or children crying in the background on workers’ home-office calls.

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Full story from The Wall Street Journal