This is the kind of stuff I recall seeing in the 90s. I think it was on the educational channel. They were saying eveyone had loads of worms and that they gave them balance or something. Yeh right. They go from one tactic to another, whatever they think will work. I guess too many people aren't falling for that tale about how there isn't such thing as parasites in the more developed countries anymore.

The worms have lobbyists who work on getting this kind of research funded. It costs the worms a lot of $$ but it's easier than trying to sneak into a salad.