FASCINATING - AT 4:37 P.M . ET:  President Obama has landed in Turkey, but Michelle Obama is not with him.  She has returned to Washington.  No explanation has been given.  If one crops up, I'll pass it along.  I wonder if she felt some awkwardness about being a woman visiting a Muslim country.  I'm just speculating, but it's a fascinating tidbit.

April 5, 2009