the shanghai composite sell 6% and more than half of all companies listed have stopped trading. they halted trading. half of the chinese stock market not trading. in hong kong the hang sang fell 8%. cutting interest rates and forcing brokerages to buy billions of dollars in stocks and investors are not convinced and big effort by the government so far don't appear to be working. team coverage tracking both of these important stories from hong kong to athens. i want to start, first, in greece. face ago hard and fast deadline this morning. demanding greek officials produce a written proposal by tomorrow on how they are going to save their crashing economy and then a final deal by sunday. otherwise, greece will be forced out of euro. these are really the last days and hours really of negotiations to save the euro. >> reporter: absolutely. good morning to you, christine. the message from europe yesterday couldn't be any