I was thinking about this. If George had not been in any trouble as a teen, his finger prints would not be on file anywhere. Since he entered the service under the name of Brad Carlton, I am quite sure he was finger printed. I think the writers will have us assume that there was no back round check when he entered the service, or that the real Brad Carlton had comitted no crimes for his finger prints to be on file, so when the prints come up they will match the current Brad Carlton.
But if the finger prints do come up to match George Kaplan, everyone is going to wonder who the heck he is and why was he in Newman towers. There may be this huge man hunt for George Kaplan which will eventually lead back to Brad.
Which means this trial story could go on forever :~