Photo of The Ohio-class ballistic-missile submarine USS Wyoming approaches Naval Submarine Base Kings Bay, Ga.

US Adds ‘Low Yield’ Nuclear Weapon to Its Submarine Arsenal

WASHINGTON — The U.S. military has deployed a new addition to its nuclear arsenal — a long-range missile armed with a nuclear warhead of reduced destructive power. The so-called low-yield missile joins other, more powerful weapons aboard stealthy submarines pr...