That is a terrific point, @Whoopty! It's very easy to blindly and immediately blame a nurse, especially when there's technology "evidence" to support his/her apparent no-show, without even asking for a reason. In no case should GPS be viewed as reason for punishment, any more than it should be used that way in any other industry. But just as we've seen Nannycams often show touching moments between caregivers and their charges, GPS can help reward the (as i said before) very many dedicated women and men who tend to the elderly and sick while weeding out the handful who neglect, steal from, or abuse them.
Living in Florida -- where I have several good friends who are home-health nurses -- we hear a lot about both great and awful cases of elder care, in both residential and institutional homes. I know if one of my loved ones needed tending to by a team of people and they wouldn't be okay if one of those folk didn't show up, I'd feel better knowing there was something -- human or technological -- monitoring attendance. Whether for a valid or invalid reason (car accident vs. goof-off), if that nurse was a no-show, at least then the caregiver organization could soon send a replacement. And in the case of fraud, taxgivers just can't afford to keep paying thieves for services and goods they're not providing or aren't needing. It's unfair to those, like your wife, who ARE providng these invaluable services and then find cuts across their industry.