Also: https://secure.ssa.gov/apps10/poms.nsf/lnx/0200302000!opendocument https://secure.ssa.gov/apps10/poms.nsf/lnx/0200302000!opendo... When dealing with a po

Also: https://secure.ssa.gov/apps10/poms.nsf/lnx/0200302000!opendocument https://secure.ssa.gov/apps10/poms.nsf/lnx/0200302000!opendo... When dealing with a population the size of the USA, and edge case you can imagine will be hit. Dealing with uncertainty is a must.