Using tracking data, maritime intelligence and verified videos, Sky News' Data & Forensics team has identified the ships still transiting the Strait of Hormuz as Iran tightens its grip on the strategic waterway. Iran's move to shut the Strait of Hormuz has brought shipping through the 24-mile stretch of water close to a standstill. Only a handful of vessels have transited in recent days, many switching off their tracking systems or linked to "shadow fleets".... [4903 chars]