good morning. i'm christine romans. let's get an early start on your money. a terrible day for stocks around the world. asian and european stocks down sharply. paris down 3.2%. futures down here. investors worse fears are coming true. greece tumbling to default. the greek stock exchange is shutdown. greece has closed its banks. greece on the verge of collapse after months of negotiations with greece and creditors demanding reforms. the country closed banks for six days. citizens can withdraw 60 euro a day. it would need a new currency the dragma. tourists have access to cash