After all the efforts, ACOs coverage in US is right now only for 9% of population (28 million citizen). It seems a low figure. You can check the details of the current situation in an excellent report (en français) by IRDES. However, they consider that this approach could be useful for France, and I'm not so sure. The differences are huge to introduce something similar.
Parov Stelar - State of the Union
In Barcelona soon