Confidentiality Scenerio 3

A well-known physics theoretician is called by a experimentalist to discuss what appears to be a new discovery that supports the theorist's highly controversial approach to the problem. However, there is much more work that needs to be done before the results are ready for publication. Meanwhile, the theorist has been invited to present a seminar at another institution where competitors of the experimentalist working on the same problem can be found. What should the theorist do to prepare for the seminar?