Officially, at least, they are not so concerned with Prince Harry's safety as with the safety of those he serves with if he becomes a specific target which I guess was not so likely in the Falklands.

Come to think of it, another odd thing is that people consider it their right to know the detailed movements of Prince Harry since third-in-line to the throne is not actually that important in the modern world. Using words such as censorship and cover up in this context would seem to attach more significance to him that is really warranted and would seem to stem more from our expectations of celebrity culture than any concept that this is an important political event of which members of an open society should be made aware.