Before other potential enemy countries wreck US economy be assured that Americans themselves will wreck their economy and society by thinking of right goals and following the wrong paths to achieve it creating millions of enemies with and without. They are busy still searching for weapons of mass destruction in Iraq, Osama in Pak-Afgan border, spying and worrying on Iran instead of bring to book the devil from Pakistan who spread nuclear technology clandestinely in the moslem world, supporting and siding with dictators in outside countries to save democracy at home, overconsuming everything spoiling the environ to invite many more Katarinas at home. THey are too busy inventing excuses to interfere and manipulate outside world to suit their temporary greeds to be worried about such possible economic catastrophe. God save the Earth.