As Stu indicated, you can build two dashboards, one for US and one for Non-US. These can then be published to each member you want to have access to them. From the toolbar at the top, click on Settings and then select Dashboard Designer. Once the Dashboard has been built, select the Dashboard from the list under Dashboard Pages, at the top under Actions, select Publish, and a new window will open up. From here you can change the type to publish to: Group, Role, User. Select User and add the users you want.
As DMS has indicated, use the Creation Date is older than 5 days. You may want to consider to add in an "OR" and say OR Creation Date is less than 10 days. This would keep your first list limited to 5-10 day old tickets, instead of everything over 5 days.
Thanks,
Mike