HAVANA, Cuba (AFP) — A Russian oil tanker subject to United States (US) sanctions is scheduled to arrive in Cuba on Monday, challenging a de facto American fuel blockade of the energy-starved island, shipping data shows. The Anatoly Kolodkin, which is carrying 730,000 barrels of crude, was north of Haiti on Sunday as it headed towards the port of Matanzas in western Cuba, according to maritime analytics firm Kpler. Cuba lost...