Immigration authorities worked closely with [Signal International]…to discourage protests by temporary guest workers from India over their job conditions, including advising managers to send some workers back to India...The cooperation...is recounted in sworn depositions by Signal managers who were involved when tensions in its shipyard...erupted into a public clash in March 2007. Since then, hundreds of the Indian workers have brought a civil rights lawsuit against the company, claiming they were victims of human trafficking and labor abuse. Signal...is fighting the suit and has sued American and Indian recruiters who contracted with the workers in India. The company claims the recruiters misled it…about the terms of the work visas…A lawyer for Signal…said the company could not comment on the suit...