Here's a picture of them seated at the Lourdes grotto in the gardens.
The Holy Father seems to be explaining to Bush about the apparition. Nice right? President Bush is is "non-Catholic contact". :p
Actually there are rumours that Bush might convert, like PM Blair. But maybe that's all they are: just rumours...
His brother Jeb converted when he married a Catholic.
That's important because many non-Catholics (especially people in Muslim countries) who see pictures like these would love to jump to the conclusion that the Vatican is very much in support of the US's policies in the Iraq and elsewhere, while this is certainly not the case.