A funding shortfall affecting the Navy's nuclear reactor program could push back by six months the construction schedule for the lead ship of the Ohio-class replacement submarine program, according to top Navy officials. At an April 10 Senate Armed Services seapower subcommittee hearing, the Navy's top acquisition executive, Sean Stackley, and Vice Adm. Joseph Mulloy, deputy chief of naval operations for integration of capabilities and resources (N8), cited an approximately $150 million shortfall affecting the National Nuclear Security Administration, $20...