To further Simon's explanation, when Canada and any country buys a fighter jet, they're buying a fighter jet for an extended period of time. They're looking at it for decades. What's relevant today is not necessarily relevant tomorrow from a threat perspective, a technology perspective and other perspectives.
When we look forward, the Gripen is designed to be credible, relevant and state of the art for the life of the program. The notion of fourth and fifth generations is actually more of a marketing term than anything else. What we've done is gotten away from generations and looked at it as a generation-less fighter. We want to make sure that fighter is relevant 20 and 30 years down the road, when we still need it. What we've done is we've created a fighter that's easily adaptable and easily upgradable.
To give you an example, some of the things to upgrade a typical fighter would take years to do the way the software and the mission systems are developed. What we've done is we've created an environment so that the software is easily adaptable. Now you can do things in a matter of hours or days or weeks, as opposed to years.
As new technologies become available to respond to new threats, whether you're introducing a new missile capability or whether you're introducing a new sensor or a new radar, our fighter is easily adaptable to meet those requirements for the life of the program.