They "have little way to know whether canvassers are actually knocking on doors or whether they are cheating – for instance, by “speed-running” routes"
I have no idea - I saved the picture with the idea of making a JavaScript image-map replica to play with, but haven't been able to find any documentation or manuals for it yet?
There's a whole range of possibilities between having an ECU, and constantly uploading video, listening to conversations, and recording location history.
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