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.

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.

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" …

Iowa GOP could force Fred onto straw poll  —  DES MOINES — Whether he wants to be or not, former Sen. Fred Thompson will probably be on the ballot when thousands of Iowa Republicans meet on Aug. 11 at the Ames straw poll.  —  After months of speculation that the "Law & Order" …

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 …

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 …

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 …

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.

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?

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.

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.

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 …

Litvinenko was British spy, says Lugovoi  —  Andrei Lugovoi, the Russian accused by the UK of murdering Alexander Litvinenko has claimed he has evidence that British intelligence was involved in the poisoning of the former KGB officer.  —  Mr Lugovoi said he believed the UK intelligence services …

Lecturers vote for Israel boycott  —  University lecturers threatened yesterday to provoke international condemnation by forcing their union into a year-long debate over boycotting work with Israeli universities.  —  Delegates at the first conference of the new University and College Union …

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 …

Big Disparities in Judging of Asylum Cases  —  Asylum seekers in the United States face broad disparities in the nation's 54 immigration courts, with the outcome of cases influenced by things like the location of the court and the sex and professional background of judges, a new study has found.

Giuliani Lashes Into Clinton Over 'Staggering' Tax Hike  —  BURLINGAME, Calif. — Mayor Giuliani is labeling Senator Clinton's plan to reverse President Bush's tax cuts "an astounding, staggering tax increase" that would turn back the clock and damage America's economy.