Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds.

Iranian Navy boats take part in maneuvers during the 'Velayat-90' navy exercises in the Strait of Hormuz in southern Iran on January 3, 2012, the End day of ten-day war games. Iran's military warned one of the US navy's biggest aircraft carriers to keep away from the Gulf, in an escalating showdown over Tehran's nuclear drive that could pitch into armed confrontation. AFP PHOTO/JAMEJAMONLINE/EBRAHIM NOROOZI (Photo credit should read EBRAHIM NOROOZI/AFP/Getty Images)
Iranian Navy boats take part in maneuvers during the 'Velayat-90' navy exercises in the Strait of Hormuz in southern Iran on January 3, 2012, the End day of ten-day war games. Iran's military warned one of the US navy's biggest aircraft carriers to keep away from the Gulf, in an escalating showdown over Tehran's nuclear drive that could pitch into armed confrontation. AFP PHOTO/JAMEJAMONLINE/EBRAHIM NOROOZI (Photo credit should read EBRAHIM NOROOZI/AFP/Getty Images)

    JUST WATCHED

    Iran, U.S. tensions growing over key shipping lane

MUST WATCH

Iran, U.S. tensions growing over key shipping lane

Iran's recent naval moves threaten a key shipping lane and could potentially set off a conflict with the United States. CNN's Fred Pleitgen reports.

Iran, U.S. tensions growing over key shipping lane

Iran's recent naval moves threaten a key shipping lane and could potentially set off a conflict with the United States. CNN's Fred Pleitgen reports.