11.   Assistant U.S. Attorney Art Leach has not disclosed his witness list, so it is unclear whether Gotti will be called to testify.

12.   Because they have been called to testify before the grand jury, the four employees are most likely potential witnesses rather than targets of the investigation.

13.   Both men had been called to testify before a U.S. Senate subcommittee about anger and alienation in the workplace.

14.   Both were called to testify earlier this year, but refused to answer certain questions during their appearances before the federal grand jury hearing evidence in the Lewinsky matter.

15.   A few months later Dohrn was called to testify about the robbery.

16.   A French journalist, who said she had had a range of illnesses since covering the Persian Gulf and Balkans wars, has been called to testify before Parliament.

17.   A person who helps prepare a will could be called to testify at a civil or criminal trial.

18.   A second officer, who is still on active duty, also received a subpoena Thursday but has not yet been called to testify.

19.   Accountants worry that because they have no client privilege, as lawyers do, they could be called to testify against a client.

20.   After a mistrial, Baker added, both Darden and Hodgman should be called to testify at a hearing to determine what happened.