A Russian cargo vessel suspected of carrying components for two nuclear submarine reactors, possibly destined for North Korea, sank in the Mediterranean Sea under mysterious circumstances in December 2024, according to a CNN investigation published today. The Ursa Major (also known as Sparta 3), a heavy-lift ship linked to Russia’s “shadow fleet” and previously used in military operations in Syria, went down approximately 60 miles (about 100 km) off the coast of Spain near Cartagena on December 23, 2024. The sinking followed a series of explosions that killed two crew members and left 14 others rescued by Spanish authorities. Spanish...