US officials also say he's in decent shape physically; mentally still unready
                                
                                
                                    (Newser) -
                                    Bowe Bergdahl tried in vain to escape his Taliban captors, US officials tell the  New York Times , and as punishment, he says "they kept him in a shark cage in total darkness for weeks, possibly months," says one official; that's a  drastically different scenario  than the Taliban...