It may not be popular to say this, but I think Landis is severely lacking in critical thinking skills. If he had any at all, he'd have been able to figure out that this isn't going to work. If he had any at all, he wouldn't be in this position to begin with.
Everyone he names is going to sue the hell out of him; and, in addition to the personal reputations at stake, there are the corporate interests: the companies that sponsor cycling in general and the implicated riders in particular. They and their money and their publicity machines won't like this. At all.
The only way I can see this having any real impact is if the U.S. Congress holds hearings because of it, subpoenas those concerned, and then catches them out in perjury. Cycling isn't really considered an American sport - it isn't very much on the radar, in terms of national interest - so I doubt that's going to happen.
Landis is a drowning man clutching at everyone around him. He hopes to drown them all, as though doing so could somehow save him. I doubt it will.
Edit: On second thought, though, Landis might experience something worse than being sued by everyone: after the initial brouhaha, he might be merely ignored. I am screaming at the top of my lungs and no one hears me. Like that.