They faked the data in one area at some VA's, and who knows how many other hospitals and insurance companies have faked data? Also, there were reports of patients on these waiting lists years before it became a big story on cable news
http://www.nytimes.com/2013/04/20/u...reduce-backlog-of-disability-claims.html?_r=0 . When I say the data is no available, I am talking about the enormous amount of outcomes data processed by the VA electronic medical records for decades. No other hospital system has this data available. It is not a question of the VA being better. It is how the system is managed and regulated that such flaws are revealed.
I have said absolutely nothing to claim I know a lot about single payer so I am not sure why you brought that up, but if you want some possible flaws of single payer:
1. Lower income for physicians attracting less competent people to join the field
2. Less innovation due to a non-marketbase system that does not necessarily reward on merit
3. Inability to gain access to best possible treatments even if you can afford them due to regulatory barriers
4. Longer wait times for visits/procedures