A cargo container ship operated by Yang Ming Marine Transport Corp. sits docked Friday at the Port of Tacoma. Negotiators for the two sides in the labor dispute that has snarled international trade at U.S. West Coast seaports reached a settlement late Friday. Ted S. Warren/AP hide caption

itoggle caption Ted S. Warren/AP

Trucks move containers at the Port of Long Beach in California on Tuesday. Contract negotiations between dockworkers and shipping companies have led to a slowdown on the piers. Jae C. Hong/AP hide caption

itoggle caption Jae C. Hong/AP

Vince Cameron has worked the docks at the Port of Jacksonville for more than three decades. If the city doesn't deepen the port, he says, a new breed of massive cargo ship will instead go to Savannah, Ga., or Charleston, S.C. Peter Haden/WJCT News hide caption

itoggle caption Peter Haden/WJCT News

A tasseled wobbegong shark (top) lies on the seafloor with the head of a brown-banded bamboo shark in its mouth on the fringing reef of Great Keppel Island on Australia's Great Barrier Reef in August 2011. Reuters/Landov hide caption

itoggle caption Reuters/Landov

Troops from the EU Naval Force warship FS Aconit intercepting a group of suspected pirates off Somalia in March 2012. Multinational naval patrols in the area have been partly credited with reducing incidents of piracy. Danile Costantini/Maxppp/Landov hide caption

itoggle caption Danile Costantini/Maxppp/Landov

Men sit by the side of the Panama Canal as a ship sails past in Gamboa near Panama City, last month. The expansion project is aimed at accommodating the world's largest container ships. Arnulfo Franco/AP hide caption

itoggle caption Arnulfo Franco/AP

Laborers stand on a new ship at a Rongsheng Heavy Industries shipyard in Nantong, China, in 2012. The troubles at Rongsheng, China's largest private shipbuilder, mirror what's happening in the global industry. Aly Song/Reuters/Landov hide caption

itoggle caption Aly Song/Reuters/Landov