The U.S. Navy warship USS John McCain, an Arleigh-Burke class destroyer, seen here in a June 2014 photo as it is docked in the Philippines, suffered a collision with an oil tanker Monday near Singapore. Ten crew members are missing. Bullit Marquez AP
The U.S. Navy warship USS John McCain, an Arleigh-Burke class destroyer, seen here in a June 2014 photo as it is docked in the Philippines, suffered a collision with an oil tanker Monday near Singapore. Ten crew members are missing. Bullit Marquez AP

US Navy collisions stoke cyber threat concerns

August 21, 2017 2:17 PM