Very informative article. I have two questions: 1. Is the multistep personal identification process listed in the court papers the same for all geofencing war

Very informative article. I have two questions: 1. Is the multistep personal identification process listed in the court papers the same for all geofencing warrants? 2. How successful are these things in actual use? The process described seems far less problematic that it would seem without knowledge of the process. But the court documents show that Google only claims to be able to accurately locate 67% of devices running their apps. And, it seems, that this translates to even fewer smartphone users. If you have an iPhone, Google might not even see you unless you are directly using their apps during the timeframe within the warrant. A lot of people turn off background refresh, and if you don't there is still no guarantee that iOS will allow the app to run in the background during that timeframe.