The New York Times report said while corporate executives have been outspoken in defending their labour practices, the American workers who lost jobs to global outsourcing companies have been largely silent.
"Until recently. Now some of the workers who were displaced are starting to speak out, despite severance agreements prohibiting them from criticising their former employers," the report said.
Pena and the other laid-off employees "handed in their badges and computer passwords, and turned over their work to a company based in India."
Pena said that he had decided not to sign the agreement that was given to all departing employees, which included a nondisparagement clause. Pena said his choice cost him at least USD 10,000 in severance pay.
Also Read
The report said leading members of the US Congress from both major parties have questioned the nondisparagement agreements, which are commonly used by corporations but can prohibit ousted workers from raising complaints about what they see as a misuse of temporary visas.
"I have heard from workers who are fearful of retaliation," Senator Richard Blumenthal, Democrat of Connecticut said in the report.
"They are told they can say whatever they want, except they can't say anything negative about being fired."
Senator Durbin, who is from Illinois, criticised the layoffs and said Abbott's nondisparagement clause was "overly broad."
Professor Hal Salzman, a labour force expert at Rutgers University, said in the past five years, through loopholes in the rules, tens of thousands of American workers have been replaced by foreigners on H-1B and other temporary visas.
They said "most of the 220 people facing dismissal had been required as part of their severance to train Indian immigrants with H-1B and other visas.