when is enough, enough?
"if not now, then when should the U.S. worry?"
the US has as military doctrine absolute dominion --including over its allies and friends-- under the sea, on the sea, on land, in air, and in space. it continues to develop new and more powerful weapons when it already as the most powerful armed forces in history. and it likes to use them.
if not now, when should the rest of the world worry?