In such a case, one should be particularly careful not to malign any individuals and one should convey in the message means for verifying the claims made. If, after the failure of internal conflict resolution measures, you decide to take the matter outside the organization, whether or not you decide to resign, care must be taken in choosing where to go. In many cases, an obvious place is a cognizant regulatory or law enforcement agency. When given a choice among media organizations, choose those with reputations for fairness and accuracy. Guidance and support from one's professional society is potentially a powerful aid to engineers in the kinds of situations considered here.
Efforts are under way within the IEEE to improve the machinery for providing such support.
Regardless of whether one obtains professional society support, it would be useful to engage an attorney to advise on the many legal aspects of the situation.