New development. The Family Advocacy Program ("FAP" - one of the agencies investigating) called my wife yesterday and told her she was in the clear. When they interviewed the student that she allegedly called "zucchini" the student adamantly denied accusing her of anything and said it was all the principal's doing.
Up to now, all the legal action has been against the school and against DODEA (Department of Defense Education Activity)
Now she is ready to start taking legal action directly against the individuals behind it. Because this particular incident happened after she went to the IG, she has whistleblower protection, and any retaliation against her is a criminal offense. She is also filing an EEO complaint.
She is going to get her pound of flesh and then some!