We have been told, and indeed you mentioned as well, General Hood, that cruise missiles are something that we have to be concerned about as an evolving threat. We have been told that we really don't have a hard and fast way of protecting North America from such missiles, especially with the potential for them to be launched offshore, be it from a surface vessel or a submarine.
With respect to the aspects that we need to protect ourselves, there is the detection system as well as the interception system. We're told that the north warning system is reaching the end of its operational life and needs to be replaced. When do you expect the replacement of the north warning system to occur?