That's a good question. You need a plan B, like anything in life. That's an issue I quickly identified. You need a plan B, and the plan B is to change the type of glass you're going to buy or to go to something else. If you don't have a plan B, then you get hosed.
So you enter into negotiations with the supplier, although ACANs are used in fewer than 4% of procurement opportunities in government. And in that 4% of opportunities, if you look at those situations where ACANs were used, you'll find the government got good value for money, including for example these C-17s, where we paid less than 8% of what was initially proposed to us by the manufacturer and what we also thought was the sticker price, given what we knew about the industry.
So there is a way to negotiate and get a good price, but it's one of those situations where you have to tread carefully.