The International Longshoremen’s Association (ILA) and U.S. Maritime Alliance (USMX) agreed last week to continue contract negotiations through Feb. 6, averting a strike that would have begun on Dec. 30, but there are still difficult issues for the two sides to address in the weeks ahead, including work practices in the Port of New York and New Jersey. "There is progress," said one source, who asked not to be identified. "If you had asked me a couple of weeks ago, I would have...