"The inevitable consequence of the first-half inventory buildup that continues to force dozens of ships to wait at anchor off major US East Coast ports is that the containers that carried those goods must eventually be unloaded and sent back empty to the ports. That’s exactly what’s happening now, sources tell JOC.com, unleashing yet another wave of disruption on a still-precarious US supply chain." See the original story at JOC.
Source: JOC