What is the point here? That we have a new high-tech defensive system that is going to make our enemies give up? That our enemies won't figure out a way to coun

What is the point here? That we have a new high-tech defensive system that is going to make our enemies give up? That our enemies won't figure out a way to counter this new defensive weapon? And then what? Repeat cycle until when? I guess my point is that it seems we are on an endless cycle of "building a bigger gun" because we are scared of what the other guy has. We spend an outrageous amount of money on these ventures when instead we should be figuring out how to live on this Earth that has a finite number of resources. If we don't change our course than humanity is doomed - either we will run out of resources or everyone will be killed off using our latest and greatest defensive weapon. I think Einstein says it best: "I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones."