Japanese companies often refuse to sign a lease until even low-level employees agree that the space is right.
"They were low-level, seasonal employees, and we have been told the investigation found negligence, not any criminal intent."
Other immigrant advocates say that low-level employees often act out of fear.
He said the only three people whose files contained such information had been those of three low-level employees.
A soaring share price made low-level employees rich, and the Walton family became one of the wealthiest in the world.
Some low-level employees have also pleaded guilty to embezzlement and drug dealing at the post office.
More than 20 hostages have been seized since then, most of them drivers and other low-level employees from poor countries.
Most concerned low-level employees, but many others were well-known public figures.
He makes it a point to know the names of all the elevator operators, guards and other low-level employees in the Senate.
His aides' first impulse was to exclude administrative personnel and some other low-level employees.