Words are important.

When one takes a position that "War has changed," and the pentagon buys into it and begins to restructure itself to fight and think about this new type of war, I believe you risk building the solution to the wrong problem, and thereby putting our nation at risk.

When one takes a position that "the Environment is changing," and the pentagon buys into that and sets about ensuring that it does not attempt to frame every emerging problem by an obsolete construct, but looks at each problem with fresh eyes, demanding that the intelligence community commits every bit as much of their considerable skill and energy to an understanding of the environment in which an event occurs as they do currently to describing the "threat" that is operating within that environment; you avoid always refighting the last conflict and thereby reduce our nation's risks.