Oil Prices Hit Record High
The price of crude oil hit a record $67 a barrel as reports of new U.S. refinery outages rekindled fears of a gasoline shortage. Margaret Warner speaks about the skyrocketing cost of crude oil and gasoline with Fadel Gheit, senior vice president for oil research at the investment firm Oppenheimer and Co., and Robert Lieber, professor of government and international affairs at Georgetown University.

Mars Mission
An Atlas V rocket roared into space Friday, sending a sophisticated NASA probe on a seven-month journey to Mars. Jeffrey Brown discusses NASA's newest mission to the Red Planet with its chief scientist Michael Myer.

Debate Over California Dam
Correspondent Spencer Michels reports on a battle over the 100-year-old O'Shaughnessy Dam in California.

Shields and Brooks
Syndicated columnist Mark Shields and New York Times columnist David Brooks join Jim Lehrer to discuss growing sentiment against the Iraq war, a possible U.S. exit strategy and President Bush's role as a wartime leader.

Fighting Terror
Dan Rivers of Independent Television News reports on Britain's latest efforts to fight terrorists, including the arrest and possible deportation of 10 foreign nationals Thursday.

Then, Jeffrey Brown speaks with Robin Niblett, director of the European Program of the Center for Strategic and International Studies, and Ken Roth, executive director of Human Rights Watch, about Britain's new anti-terror laws.

In John Roberts' Own Words
Opponents of John Roberts aired an ad Wednesday labeling him a supporter of violent actions against abortion clinics. Kwame Holman looks at what Supreme Court nominee John Roberts said in interviews on the NewsHour about abortion, affirmative action and several Supreme Court cases.

Then, Margaret Warner talks with Douglass Kmiec, professor of constitutional law at Pepperdine University, and professor Peter Rubin from Georgetown University about Robert's judicial philosophy.

Transportation Bill
President Bush signed a $286.4 billion transportation bill, which includes money for projects around the country.

Margaret Warner reports on the bill with Congress watcher Norman Ornstein of the American Enterprise Institute.

Lung Cancer
Lung cancer remains the leading cancer killer in the world; 163,000 Americans will likely die from it this year alone.

Jeffrey Brown discusses what causes the disease and its treatments with Dr. Mark Clanton, deputy director of cancer care systems at the National Cancer Institute, and Dr. Joan Schiller, an oncologist at the University of Wisconsin.

New Grazing Rules
Tom Bearden takes a look at some upcoming rules for grazing private cattle on public land and the problems they may cause.

Conversation: Fathers, Sons and War
Terence Smith has a book conversation about fathers, sons and the shadows cast by war.

Shuttle's Safe Return
The space shuttle Discovery glided to a landing at Edwards Air Force Base in California early Tuesday morning after a 14-day mission.

Jeffrey Brown talks about the shuttle's return and what comes next in NASA's space program with John Logsdon, a member of the Columbia Accident Investigation Board, and Robert Park, a professor of physics at the University of Maryland.

Newsmaker: Christopher Hill
Margaret Warner discusses why talks with North Korea to end its nuclear weapons program have failed thus far with Assistant Secretary of State Christopher Hill.

Mourning in Ohio
Betty Ann Bowser reports on an Ohio town honoring local Marines killed last week in Iraq.

Publishing Pioneer
Kwame Holman remembers America's first black publishing mogul John Johnson, who died Monday at age 87.

Nuclear Negotiations

Margaret Warner discusses the latest developments in these negotiations with Henry Sokolski, deputy for nonproliferation policy in the Office of the Secretary of Defense during the first Bush administration, and George Perkovich, vice president for studies at the Carnegie Endowment for International Peace.

Profile: Patrick Fitzgerald
Elizabeth Brackett provides a profile of federal prosecutor Patrick Fitzgerald, who has been investigating the leak of CIA agent Valerie Plame's identity.

Remembering Peter Jennings
Peter Jennings, the anchorman and senior editor of ABC's World News Tonight, died Sunday of lung cancer. He was 67. Jeffrey Brown takes a look at Jennings' career.

Then, Jim Lehrer talks to NBC's Tom Brokaw about his friend and former colleague.

Singer of Stories
Jim Lehrer remembers Cuban singer Ibrahim Ferrer, who died Saturday in Havana of multiple organ failure.