This is the reason that Jim and I really want to look at it. One of the things that struck us when we were interviewing people, especially military and other agencies, and we asked exactly your question about how the NORAD maritime warning is going, many responses were sort of like this: “It has this mission? I didn't realize this.”
NORAD has always been very air-centric, and now with maritime warning we're talking about more of a navy focus. But also, other agencies like Transport Canada, the coast guard, the police, etc., have the remit for maritime surveillance, so it is very new for NORAD to try to integrate not only different military personnel, but now also different agencies in terms of the information that's collected, and who to pick up the phone and speak to.
Maritime warning began in 2006. It certainly isn't as well mandated and resourced as the air warning and control. Mind you, NORAD has only the maritime warning mission, not the control mission, so that can also speak to the reason that there is a slight inequality in terms of resources. It may be significant, however, that the new commander of NORAD is Admiral William Gortney, and he is with the United States Navy. He is a pilot, but is with the U.S .Navy.