> Lenses are generated on the device. They're not uploaded to Snapchat servers.

Context is very important when you're quoting people: "... and if they've been "good" data miners..."

And regardless of whether or not a filter is generated on device, facial data is being used, and so I'm weary that it could be sent to a server. If it's not, fine, but that's subject to change.

> From the support site: "Snapchat servers are designed to automatically delete Snaps after they've been viewed by all recipients."

So when authorities get involved, I'm sure Snap says "sorry, can't do anything for you"?