ICANN specifically set aside all two character TLDs to be for country specific codes. There’s only a few cases where they kept ex countries TLDs around and phased them out over several years. It would be an entirely new precedent if they did keep it. So I wouldn’t depend on it
CDs have an advantage over USB drives in that they can’t actually secretly be USB HID devices like a fake keyboard or mouse that runs a bunch of commands when it plugs in. It’s only a storage device.
A super secure environment might then lock down all USB devices to ones known by them and then epoxy all ports and devices.