For anyone looking for great talking points about this issue, I highly recommend "Taking Control of Your Personal Data" by prof. Jennifer Golbeck, published by The Teaching Company, ISBN:978-1629978390, likely available at your local library as a DVD or streaming.
Is this specific one valid anymore? I remember seeing in the last year or two that Google location history is now encrypted and it now no longer auto backs up the data, you can enable it though, so the data is now only on the device.