Top Navy commander: U.S. uses nuclear subs to deter foes

Aired: 7/31/2015 | 0:04:42 | Clip
Replacing America’s 14 nuclear-armed submarines with 12 new ones is said to be the Navy's highest priority. Vice Admiral Michael Connor tells the PBS NewsHour that buying too few new submarines could tempt adversaries to think if they struck America on the right day, they could succeed in delivering a knockout blow.