Ash Carter, new defense chief, makes Pentagon debut; wife slips on ice

Ash Carter, President Barack Obama’s new defense secretary, made his Pentagon debut on Tuesday.

Carter emerged from a black sport utility vehicle at a snowy, icy Potomac River entrance to the Pentagon. He made no comments to a gathering of reporters, photographers and cameramen. His wife, Stephanie, slipped and fell on the icy pavement. She laughed it off and officials indicated she was not injured.