> If you're suggesting that the hundreds of thousands of healthcare providers just in the US all get together and lease some dark fiber -- there's zero chance t

> If you're suggesting that the hundreds of thousands of healthcare providers just in the US all get together and lease some dark fiber -- there's zero chance that happens. I am suggesting that not all computers in a hospital need to have an Internet-accessible connection. Nor even all applications on a PC need to be Internet-accessible: if you're using Windows you can have an application icon that does not launch a program locally, but rather initiates an RDP session to a terminal server (TS) and runs the program there, while the app window is displayed locally (like X11 forwarding). The (TS) server is dual-homed so the app that runs there can (e.g.) connect to patient records network, but the local PC that is just being used as a display is not on that sensitive network.