The US is pursuing a sanctioned dark fleet oil tanker, a Guernsey-linked insurance company helped keep it - and many others like it - afloat
An aging fleet of tankers sail around the world, shifting oil and other goods in defiance of international sanctions.
In doing so they help keep revenues flowing for Russia, Iran and Venezuela, using deceptive tactics like manipulating tracking software, frequent name changes, false flags and opaque ownership structures to help
