Since then, workers say, company officials have tightened security and repeatedly warned employees not to discuss operations with outsiders.

To warn employees about the new tax, the bank has been attaching notices to its tuition-reimbursement checks.

United warned employees last week to expect another round of cost-cutting, without mentioning a figure.

Polls show that the public strongly believes it's only fair to warn employees who are soon to be out on the street.

The station has been shut down more than once, and a sign warned employees to check carefully before opening the door.

When protests followed, the foundation warned employees not to discuss the firing on the air.

The company had warned employees several weeks ago that cutbacks were imminent.

He has also warned employees against rude and uncooperative behavior toward customers.

Mr. Carty warned employees recently that more layoffs were ahead, on top of the 20,000 jobs eliminated last fall.

The law requires employers to warn employees 60 days before a mass layoff instead of simply giving them severance pay.