Not sure about this matter, but not too bothered either.

Much more important is how Murdoch deliberately and knowingly misinforms people on just about every subject from celebrity private lives to matters of serious political significance.

By the way, I wonder what the letter said? ....

... I suspect something along the lines of "it could be good for your popularity if you are seen to show a human interest in the McCann case"

That seems realistic - note: I didn't say whether it was right or wrong, just that that is probably what he said.