From an April 14 Gateway Pundit post:

That's weird.

Obama's nuclear summit logo is an Islamic crest.
Via Evil Conservative.

It's just weird. We all know he's a good Christian. We've even seen his church.

More at EC.

Previously:

Michael Goodwin: Nuclear Summit logo features "[t]he kind of crescent moon you see on the flags of Muslim countries"

Fox & Friends sees “Muslim image” in logo for Nuclear Security Summit