he oil tanker Marinera, seized by the United States, had been chartered by a private trader under the flag of Guyana.It changed its flag to Russian while in the Atlantic, already being escorted by a U.S. Coast Guard vessel, Caliber.Az reports, citing REN TV.The U.S. Coast Guard began pursuing the tanker off the coast of Venezuela after failing to obtain confirmation from Guyanese authorities that the ship was sailing under their flag.U.S. officials demanded that the captain proceed to a U.S. port, but he refused and steered the vessel into the Atlantic. En route, the tanker requested temporary registration under...