I think there are issues; collecting usefull data that improves design and diagnosis can drift into collecting data just because its possible. I think there's a bit of that going on already "oh we can collect that it could be useful" which is OK until it falls into the wrong hands and is triangulated with other data sets which then build a detailed picture of your life. I think it also depends on the context, MH370 would have been found by now if there had been more data transmission so its can be a very good thing. My series has a tracker and I'd quite like one on my son! Be interesting to see where this goes after Brexit, the EU were in tehe process of mandating black boxes with speed records on all new cars, Singapore already have this and the car alarms if you are speeding, the next step is automatic fines. I have mixed feellings about this, we live in a queit residential street but one or two drivers do 60 mph, would I like a system that stopped that? yes I would.