Although we're quite a distance away from any of those muscle-bound ideas becoming everyday realities, it's good to at least see them on the horizon.

ENGADGET: Turing machine built from artificial muscles may lead to smart prosthetics

And though these countries may be a great distance from our shores, we know that our own future is bound to this region by the forces of economics and security, by history and by faith.

WHITEHOUSE: Moment of Opportunity: American Diplomacy in the Middle East & North Africa | The White House

During periods of low volatility, this distance will contract, which allows us to better identify a range-bound market.

FORBES: Gain an Edge with Volatility Analysis

But it was a sobering reminder that the old definitions of theaters of war -- bound geographically, determined by generals, kept at a safe distance from the people back at home -- no longer necessarily apply.

CNN: The fog of war envelops Fort Hood