As long as he has nothing to hide, and Mangum's stories are so flawed, he has everything to gain and she has everything to lose. She would be forced to counter-sue froma defensive position. The psychological pressure would be tremendous. Most importantly, all her conversations with Nifong would become public as would the details surrounding the medical report and the identifications of the players and who all she had sex with, the nature of her employment, all of it, before there could ever be a criminal trial. There is no attorney-client privilege between Mangum and Nifong because he does not represent her. He represents the people, so his machinations in this case would be revealed. Mangum would place the blame on Nifong as pushing her into going forward with her claim and making the ID's. If Reade filed suit against her, Nifong would be changing his shorts hourly.
But if he waits to sue, she'll have more $ from her windfall civil suit!! ;)