For those of you like me who don't have a huge fund of knowledge for healthcare, here's a great article that sums up a lot of information. Great for the "how should the healthcare system be fixed" interview questions.
http://www.nejm.org/doi/full/10.1056/NEJMsa1114777
http://www.nejm.org/doi/full/10.1056/NEJMsa1114777