The US is spending billions of dollars deepening port harbors to make room for 'mega' container ships that are only getting bigger
Hannah Towey
The Ever Ace, the world's largest cargo ship, is as long as four football fields and can carry over 23,000 containers.
Container ships like this one have more than doubled in size over the past decade. While the massive vessels can hold more Amazon orders than you can imagine, the rapid growth presents a problem for US ports — the ships can't fit into most harbors.