Of course, another possibility is that he was in Japan and it is customary there to take off your shoes when entering a Japanese home. Was he entering a Japanese home or was he visiting the Emperor of Japan?
What do you think? It certainly looks like a mosque to me.
A Muslim prayin at a mosque certainly deserves no news.
The thing with The Obama is that he claims to be "Christian".
So how does one reconcile a Christian praying at a Muslim mosque? Unless of course, you redefine what "Christian" and "Muslim" means, then you will find no disconnect in your actions.