leading to long lines at cash machines. greece spiraling toward default on debt. that default could come tomorrow. a huge payment due to the international monetary fund. it could leave the eurozone. it is a critical situation. on the ground we have cnn's isa suarez live in athens. isa, we have seen the reaction around the world. greece at the end of the five-year long road. people waiting to see if the banks open for a bit today so pensioners can get some money. >> reporter: absolutely. we were told they were expected to open midday. as you can see, christine, shutters are still down. we have seen people hovering to see if they will open. we have been hearing they are filling up the machines. one man told me it is 12:00 midday. it could be 12:00 midday