11.   A similar proposal was filibustered last year because Democrats argued that it would undermine federal labor laws and allow employers to take advantage of employees.

12.   Computer software would make it relatively easy to develop standards based on federal labor statistics, he said.

13.   Doctors in private practice are not allowed to unionize because federal labor law permits only people described as employees to unionize.

14.   Dissident attendants are trying to oust the AFA as their legal bargaining agent, a laborious process that would require a vote conducted by federal labor monitors.

15.   Federal labor law makes it illegal for any company to fire or retaliate against an employee for supporting a union.

16.   Federal labor laws limit the enforcement of union anti-bribery provisions to government prosecutors, not to private plaintiffs, the judge ruled.

17.   Federal labor officials later notified more than a dozen large retailers that goods from the plant may have ended up in their stores.

18.   Federal labor investigators found that the factories kept two sets of books, one with false numbers showing that they complied with wage and working-hour laws.

19.   Federal labor law bars managers from retaliating against union supporters.

20.   Federal labor laws have long prohibited private employers from asking their employees to perform extra tasks on an unpaid basis.