The Fourth Protocol use his own spy network and plant the suspicion that Berenson was in fact a double agent, so that his information will be considered suspect. The Fourth Protocol The Fourth Protocol is a novel written by Frederick Forsyth and published in August 1984. The title refers to the 1968 Nuclear Non-Proliferation Treaty, which (at least in the world of the novel) contained four secret protocols. The fourth of the protocols was meant to prohibit non-conventional deliveries of nuclear weapons, i.e. by means other than being dropped from aircraft or carried on ballistic missiles. This included postal delivery or being assembled
The Doctor (Doctor Who) (A change that is later 'reset' in the novel "The Ancestor Cell" thanks to the TARDIS taking action to preserve the original history). In the Past Doctor Adventures, the novel "Heart of TARDIS" features the Second and Fourth Doctors dealing with two different ends of the same crisis, with the Second Doctor trapped in a dimensional anomaly created by a government experiment and the Fourth recruited to stop the experiment destroying the world, but although they are at one point both in the Second Doctor's TARDIS, the Fourth Doctor and his companion hide on the opposite side of the console