ParadoxOryx

Yes, your calls would be traveling over an encrypted tunnel to the carrier instead of the (simulated) cell tower, thus preventing the Stingray/site-simulator from carrying and listening in on your call.

However, it would not stop someone from listening to the call at any point over the rest of the path since the call itself is not encrypted, only the transport between the carrier and your phone.

I'm definitely interested... what do you need?

That's definitely concerning. Makes you wonder how well secured our other emergency/critical systems really are.

With how poorly trained so many of the TSA agents currently seem to be, I'd be more than a little concerned with the idea of handing them all guns.

On macOS, you can hold the command key and drag the clock off the menu bar.

I believe the app stays available in the Purchases section like you said if the developer "unpublishes" the app, but not if the account or app is "terminated" by Apple.

In addition to Dash (which I'm not able to locate in my Purchases tab), I've noticed this to be the case with apps that violate Apple's rules, like those hidden proxies or emulators that have sprung up over the years and were later removed by Apple.