**FILE** A truck driver watches as a freight container is lowered onto a tractor trailer by a container crane at the Port of Boston in Boston on Dec. 18, 2012. The crane and a reach stacker at left are operated by longshoremen at the port. (Associated Press)

Photo by: Steven Senne

**FILE** A truck driver watches as a freight container is lowered onto a tractor trailer by a container crane at the Port of Boston in Boston on Dec. 18, 2012. The crane and a reach stacker at left are operated by longshoremen at the port. (Associated Press)