They said such an app could be used for espionage and tracking down locations of federal employees and contractors.

But an operating system by an American corporation, and its office software, and authentication services, used by governments, business and citizens, is just fine.

I understand Twitter is used as a propaganda tool, but if we are also talking about espionage and tracking, then we should also pay attention to how many people and organizations are using companies like Microsoft, Apple and Google.