And much of this process, of debating what might be done to prevent such tragedies in the future, is an essential ingredient in our exercise of self-government.
After nearly a decade of declining activity, the Russian military began to exercise its forces in mission areas it believed were essential for deterrence, global reach and rapid reaction.
Moving also requires shifting institutional thought, especially the idea in education that physical exercise is in competition with academics for a slot in the curriculum instead of an essential ingredient of academic performance that begins with increasing general physical activity.