(Editor's Note: This story has been updated to reflect that Sandia National Laboratories Director Paul Hommert did in fact appear and testify at today's hearing.) The director of Sandia National Laboratories informed Congress today that technical risks on an $8 billion nuclear bomb modernization program are well under control, but that lawmakers' inability to undo sequestration or pass a full fiscal year 2014 budget is endangering the program's ability to stay on cost and schedule. The House Armed Services...