Just to pass this along,

WORKERS: An Archeology of the Industrial Age Photographs by Sebastiao Salgado from January 16th to June 5th.

It is at the de Menil Gallery located on the campus of Groton School in Groton, MA. It's open to the public 11am to 6pm except Wednesdays and school holidays. www.groton.org (go to Arts). There is an opening reception on January 21st from 7-9pm.