With only hours before President Bush's Wednesday deadline expires for Saddam Hussein and his sons to leave Iraq or face a military invasion, thousands of American and British troops have massed along the northern Kuwaiti border with Iraq.

Republicans denounced Senate Democratic leader Tom Daschle on Tuesday for his criticism of President Bush with the nation on the brink of war. Jim Lehrer and guests discuss the appropriate role for those who oppose a war.

Members of an Iraqi-American community in Detroit give their views on a possible war with their home country and President Bush's ultimatum ordering Saddam Hussein to leave Iraq.

Three retired military officials discuss the battle plans U.S. planners are likely to use in an Iraq war and how Saddam Hussein's troops might respond.