Follow PBS NewsHour’s complete coverage of U.S. news, reports and analysis.

The investigation continues surrounding the suicide of the British Defense Ministry weapons adviser who was the British Broadcasting Corporation's main source for a story alleging Tony Blair's government had "sexed up" intelligence on Iraq's weapons.

Retired Gen. Tommy Franks has said that the U.S. occupation in Iraq could last up to four years. Ray Suarez discusses America's role as occupier with four historians: NewsHour regular Michael Beschloss; Bruce Jentleson of Duke University; Carol Gluck of…