Currently the European environment would not support an FAA style system.
We currently use ASD to track our aircraft within the UK region, but to date no other ECAC ATC authority has agreed to supply its data for display. Our system runs from a U.S. site using NATS data shared with the FAA and is invaluable in poor weather and for short-range flight tracking. Ironically for deliveries we can track an aircraft from departure in Seattle to landing at base here in the U.K., regrettably aircraft just past the north coast of France simply disappear.
Weather radar is another issue, we currently use between 6 and 8 sites for weather tracking in Europe, none of these is a live feed, most being at least an hour out of date.
I agree that by doubling the number of responsible individuals involved we could reduce the chances of an accident/serious incident. Unfortunately I suspect this is unlikely to happen.