I'll add a quick comment.
I think it's important to note, especially with insulin but with every drug, that we're talking about two different things when we're talking about cost and price. A recent study that came out in the BMJ Global Health journal estimated that the cost to produce insulin sits at around $5 a vial, and current list prices in the United States are at around $300.
With regard to cost and access, ultimately I think that if you're looking at the cost, there's still an opportunity for pharmaceutical companies to make a profit when they're not charging the prices that they're charging today.