I agree. Considering what we know now about how the fisagate spying operation was conducted, it is impossible for me to believe that Sessions was not also a victim of the crime.  Legally speaking, he can't prosecute squat, through no fault of his own.  I think Sessions either goes back to the senate, or else, goes on to private endeavors where his insider knowledge could find its way into the right hands, and devastate the swamp.