Iran, the Gospel of Barnabus and the collapse of Christianity

"News" of the infamous Gospel of Barnabus has has surfaced again and is being reported in such esteemed organs as The Daily Mail . I posted some time ago about the background to this fake Gospel and how Islamic sites get over-excited whenever it's mentioned.
The latest re-hash seems to be exactly that - a recycling of a story that was first published in the Mail in February.
Even by the standards of lazy DM journalism, this really does beggar belief! Do they think the attention span of their readers is so short that they won't cotton on to the fact that they're reading a 5 month old story? Actually, don't answer that.