NASA's Top Official Questions Global Warming  —  NASA Administrator Michael Griffin Questions Need to Combat Warming  —  NASA administrator Michael Griffin is drawing the ire of his agency's preeminent climate scientists after apparently downplaying the need to combat global warming.

Lieberman talks to troops in Baghdad  —  BAGHDAD, Iraq - Spc. David Williams, 22, of Boston, Mass., had two note cards in his pocket Wednesday afternoon as he waited for Sen. Joseph Lieberman.  Williams serves in the 82nd Airborne Division from Fort Bragg, N.C., the first of the five "surge" …

What I Think About Evolution  —  IN our sound-bite political culture, it is unrealistic to expect that every complicated issue will be addressed with the nuance or subtlety it deserves.  So I suppose I should not have been surprised earlier this month when, during the first Republican presidential debate …

White House envisions "Korean model" in Iraq  —  WASHINGTON — President Bush would like to see the U.S. military provide long-term stability in Iraq as it has in South Korea, where thousands of American troops have been based for more than half a century, the White House said Wednesday.

Minnesota case fits pattern in attorneys flap  —  Republicans wanted more vigorous efforts to legally challenge questionable voters in state.  —  For more than 15 years, clean-cut, square-jawed Tom Heffelfinger was the embodiment of a tough Republican prosecutor.

What Would Americans Tell President Bush to Do About Iraq?  —  Majority would tell president to bring troops home from Iraq or develop exit strategy  —  PRINCETON, NJ — What would Americans say to President Bush if they could talk to him about the situation in Iraq for 15 minutes?

McCain Agrees We Need a Cap To Maintain "White, Christian, Male Power Structure"  —  John McCain's campaign posted this YouTube clip of the Senator on the O'Reilly Factor:  —  Near the end of the video, there was this exchange:  —  Bill O'Reilly: But do you understand what the New York Times wants, and the far-left want?

Of Market Forces And Organ Donors  —  Until now, I have not commented on the story regarding the Dutch game-show giveaway of two kidneys, which may surprise CQ readers, since the issue is one that hits very close to home for my family.  Michael van der Galien's post about the television competition …

Injustice 5, Justice 4  —  The Supreme Court struck a blow for discrimination this week by stripping a key civil rights law of much of its potency.  The majority opinion, by Justice Samuel Alito, forced an unreasonable reading on the law, and tossed aside longstanding precedents to rule …

A spreading terror  —  Iraq now set up as a school for insurgents ready to be exported, says GEORGIE ANNE GEYER  —  Anyone who knows anything about cancer knows that the danger point comes when the cancer suddenly and unexpectedly appears in another supposedly "clean" part of the body.

Time for 'Plan B-H' in Iraq?  —  President Bush said publicly last Thursday what his top aides have been discussing privately for weeks.  He talked about a transition to "a different configuration" in Iraq after the surge of U.S. troops is completed this summer.

An answer for my critics  —  Editor's note: Lou Dobbs' commentary appears weekly on CNN.com.  This commentary is a transcript of a commentary Lou delivered on "Lou Dobbs Tonight"  —  NEW YORK — I've been — over the years, because of our reporting on controversial issues and my strongly held beliefs …

Yepsen: Biden's vote for war funding a profile in courage  —  Delaware Sen. Joseph Biden is the only Democratic presidential candidate to have voted for the recent supplemental war-funding bill.  —  That's not a very popular thing to do in a party where anti-war passions run high.

Continental Drift  —  Europe shows signs of life, but Walter Laqueur argues that it's still dying.  —  If you've heard the celebratory noises coming out of European capitals of late, you could be forgiven for thinking that, as with Mark Twain's prematurely recorded demise, reports of Europe's death may have been greatly exaggerated.

Obama and Romney Lay Out Positions on Iraq and Beyond  —  Democratic presidential candidate Barack Obama and Republican candidate Mitt Romney outline their respective foreign policy visions in lengthy articles in the next issue of Foreign Affairs magazine, offering sharp contrasts on issues including the war in Iraq and climate change.

Nixon '68  —  Brink Lindsey and Ross Douthat see past as prologue in this Nixon ad calling for an honorable end to the Vietnam war.  —  They might be right.  But, this raises an interesting question: Which Democrat could plausibly run such an ad?  Frankly, with the exception of Joe Lieberman …