We have so much effort into offence that we ended up forgetting about defence, and losing the latter makes the former largely ineffective. This completely destroys the credibility of the NSA's argument that they deserve ever-more expanding powers to reach around the globe, especially given that we will have hands following the neat trail that we have behind ourselves.
Why do we give them the power to act with impunity and without oversight, trusting them to reach around the globe, when we expose ourselves the whole length of the way?
It's like leaving the door open at Fort Knox because we're too busy spying on our neighbours.