Despite presence of federal mediator 'no further agreements have been reached.'
The longshore union says the 'few issues that remain unresolved relate directly to the carriers.'
Senator seeks to change the "build America" requirement for Jones Act ships.
Ports, airports and railways ready to implement winter contingency plans.
Belgian port reports record growth thanks to container and liquid bulk sectors.
Railway and intermodal provider set records for revenues and earnings in 2014.