DAVID MIRANDA IS NOT AN AMERICAN CITIZEN OR RESIDENT HE IS A BRAZILIAN, A CITIZEN OF BRAZIL WHO WAS ENGAGED IN AN ACT HOSTILE TO THE ELECTED AMERICAN GOVERNMENT. IT WAS NOT BARACK OBAMA'S JOB TO BE SPEAKING UP FOR A BRAZILIAN WHO WAS ENGAGED IN ACTS HOSTILE TO THE AMERICAN GOVERNMENT!
If Glenn Greenwald wants to come back to the United States with David Miranda after they have been legally married, perhaps the recent Supreme Court ruling annulling the "Defense of Marriage" Act - with Barack Obama's support - would make David Miranda's well being and happiness Barack Obama's legitimate concern, but that's up to Greenwald and Miranda, not the President of the United States.
What Rachel Maddow did was demanding that Barack Obama attempt to assert authority far past when he had any authority on behalf of a Brazilian Citizen who is engaged in acts hostile to what The President believes is the security of the United States. Doing what he believes to be in the security of the United States is within his authority and his sworn responsibility. It's our responsibility to debate that and to try to make the congress pass laws to ensure that the president's and the government's ability to do that doesn't actually endanger freedom and a reasonable expectation of privacy. That's an American journalist's job, or so they like to claim. Them doing their job is the only reason they are granted any special status they can claim under the law.