From WaPo (registration required):

With thousands of their citizen-soldiers away fighting in Iraq, states hit hard by Hurricane Katrina scrambled to muster forces for rescue and security missions yesterday -- calling up Army bands and water-purification teams, among other units, and requesting help from distant states and the active-duty military.

It's all connected. Refusing to limit emissions leads to unprecedented hurricanes that cause massive death and destruction.

National Guard units are already deployed to a war zone, contrary to their established purpose, and without proper training or equipment.

That leaves the "Homeland" with fewer feet on the ground to provide comfort and support in times of national crisis. And with the resources of other states being directed to the places they're needed, that leaves the rest of us even less protected for the next domestic crisis.

We're less safe than we were five years ago in so very many ways.