One of the reasons why our country has been able to thrive as well and as long as it has is because of our isolation. We have 2 big oceans that encompass us. We have a very friendly country to the North and a tolerant relatively friendly country to the South. In this age of planes and subs, does this isolation still benefit us in regards to defense? I for one think that it does. Not as well as it might have some decades ago, but it still helps.