Former Pennsylvania governor Tom Ridge was recently named head of a new federal agency called the "Office of Homeland Security." President Bush set it up to co-ordinate the counter-terrorism efforts of a number of agencies.

U.S. columnists and historians are finding great significance in the choice of the word "homeland" to describe the new agency. Ted Landphair explains, in this edition of Dateline.

If you prefer, you may download a copy of this report for later listening.

Every Monday through Friday Dateline examines an issue in the news. Listen to these recent Dateline programs:

Afghan Opposition
Attack Against Terrorism
New York Drop-In Center
Civil Liberties and Terrorism
Harassment of Muslims and Arab-Americans
US Need for Support from Moderate Arab States
The Cost of Terrorism
A Declaration of War
The Middle East Peace Process and Terrorism