This is exactly the kind of situation where you want public health authorities to have cell phone location data, however coarse-grained it is, to create a list of possible contacts. Note that a bluetooth contact tracing app would be (even more) useless in this case https://twitter.com/samdolnick/status/1259491120188456963 …
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The efficacy enhancement seems slam-dunk obvious to me (false positives are inherent to quarantines since the method was invented and don't stop it from working). It would be good to move to protections, worries and implementation questions rather than efficacy distractions.
Thanks. Twitter will use this to make your timeline better. UndoUndo
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Also, a bluetooth contact tracing, widely deployed, would be better: far more precise than tower dumps for "who was in bar X at time T." But I think South Korea may have more precise info then tower dumps, eg, the Call Center X study said they notified those near based on cell
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Which suggests that the cell companies may be already recording far more precise than just tower, which is something they can do (E911 precision is a couple hundred yards).
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