Silver in cruise missiles

According to this website, each cruise missile has 15 kg of silver content.

http://maxkeiser.com/2011/03/20/note-each-cruise-missile-contains-approx-15kg-of-silver-in-wiring-contacts-solder-and-batteries/

There are 32.15 troy oz. per kg X 15 kg = 482.25 troy oz. per cruise missile.

That's almost 500 oz. of silver that will never be recovered.  Oh, and missiles kill people.  This is madness.