Radiocarbon dating of fossils taken from caves on islands along southeastern Alaska's coast suggest that at least a portion of the area was remaining ice-free during the last ice age.

A guiding principle for any imaging procedure, regardless of age, is that radiation should be limited - or "coned" - to the area being examined.

Official statistics showed 68 percent of the people between the age of 18 and 48 are ensured in that area.