Authorities investigate possible Russian "hybrid warfare" after oil tanker cuts undersea cables

At least 11 critical undersea cables have been cut in the Baltic Sea in the past two years. Authorities suspect Russian hybrid warfare aimed at undersea infrastructure.

The Navy commissioned $400K worth of safety videos. Then it tried to make them disappear.

The service commissioned a series of training films on three deadly mishaps at sea. It's unclear if they'll ever be used.