God help us - it looks like we are going to go around in circles on this one again. The relevant case law and facts will drive the DOJ decision on what to do.
We never stopped going around. The SEC was always expected to investigate Apple's stock options irregularities, just as they are doing for dozens of other companies. It was always going to take months.
It is legal to back date options, but when you do it I believe it devalues your shares every so slightly.
It's actually far simpler. If a company grants an employee the right to buy shares (an option) for $20 per share when the current market price is $25 per share, then the $5 per share difference must be treated as outright compensation to the employee, and must be reported on the company's books as an expense. If they fail to do this accounting properly, then the company's profits will be artificially inflated.