White House bin Laden PR Campaign

I've got some questions about the way the bin Laden PR campaign is being handled by the White House. Why is the only statement from the president on his decision to not release a bin Laden death shot one given to 60 Minutes that won't air till Sunday? 

Why was Jay Carney reading from the 60 Minutes transcript yesterday at the press briefing rather than expressing in his own words, as he would usually do, the reasoning of the president - or reading a unique presidential statement? It seems to me that everything is being orchestrated to extend the news cycle through the weekend.