premise: The leak of the information was said to be "regrettable" by the Ministry of Defence, however this meant that Prince Harry was ordered to return home due to fears for his, and the others in his unit's safety. Prince Harry will be flown home "immediately", after 10 weeks of front line service. During this he worked as a Joint terminal attack controller (JTAC) and was involved in major operations on the frontline against Taliban forces.
hypothesis: Prince Harry has to go home.