Quote: If a target is spotted in the new images, is there a way to view older imagery to see if a target is there too,
Yes just turn off the new overlay layer but the problem will be the older layer is much lower resolution so it probably will not help any.
-------------------- "Give a man a fish; you have fed him for today. Teach a man to use Google Earth and the BBS and he won't bother you for months, if ever, again." - Mighty Pete