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Employers "hopeful that this will allow us to move toward conclusion of an agreement in the near term."
Move comes as ILWU, PMA talks enter 10th month.
CMA CGM Vice Chairman Rodolphe Saadé calls deal a "major new agreement."
Transpacific carriers cite port congestion and stronger demand as economy improves.
New style port directors are trying to tailor ports to industry supply chain needs.
Senate moves to decouple fight over immigration policy from Homeland Security, but resistance remains in House.