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PMA said ships will not load or unload cargo Thursday, Saturday, Sunday or Monday due to continuing ILWU slowdowns.
West Coast port union and management continue publicity war.
Liner giant said last month it cut capacity 10 percent in response to reduced European demand.
On-time performance is being hampered by congestion at West Coast ports.
DHS funding crisis means the agency will have to focus resources on border security, cargo clearance
The revised agreement would allow collaboration on congestion, transportation infrastructure needs and pollution mitigation.