U.S. Says Arms Link Iranians to Iraqi Shiites  —  After weeks of internal debate, senior United States military officials on Sunday literally put on the table their first public evidence of the contentious assertion that Iran supplies Shiite extremist groups in Iraq with some of the most lethal weapons in the war.

Dixie Chicks to country: nah-nah  —  It was more than a love of their music that was behind the Dixie Chicks' victory lap at the Grammy Awards Sunday.  —  The Texans won the three biggest awards - song, record and album of the year - for a disc in which they fought back against a country-music establishment …

Obama Plan Has a Critic in Australia  —  On his first trip to Iowa as a presidential candidate, Senator Barack Obama, Democrat of Illinois, found himself responding to an unexpected critic: John Howard, Australia's prime minister.  —  Mr. Howard, a conservative leader who is a close ally of the White House …

Libby Live: Walter Pincus One  —  (Sorry about the quality of this picture, which is scanned.  But I love that Pincus has a messier desk than I do.)  —  NOTES: (1) This is not a transcript — It's the blogger's approximation, and no one really knows what that is yet!

Clinton Says Rove Fears Her Candidacy  —  It was a roundabout endorsement, to be sure, but Hillary Rodham Clinton Sunday cited none other than White House political adviser Karl Rove to make her case that she is the most electable Democrat in 2008.  —  Campaigning in New Hampshire …

Cheney Testimony in Libby Trial Would Carry High Risk  —  One figure has dominated the trial of I. Lewis Libby Jr. without even showing up in the courtroom.  Day after day, the jury has heard accounts of the actions of Vice President Dick Cheney, watched as his handwritten notes were displayed …

Stem cells used for 'natural' boob jobs  —  WOMEN may be able to undergo a "natural" form of breast enlargement using their own stem cells and fat.  —  The technique, pioneered in Japan, results in breasts that look and feel smoother than conventional cosmetic surgery using implants.

Iraq war debate shifts to the House  —  GOP lawmakers will be in a tough position as Democrats push a resolution that dissents from Bush's strategy.  —  WASHINGTON — As the House this week launches its first major debate over the Iraq war since the November elections …

Entrepreneurial Culture  —  Why European economies lag behind the U.S.  —  The nations of Continental Western Europe, in the reforms they make to try to raise their economic performance, may prove to be a testing ground for the view that culture matters for a society's economic results.

Taking on Guantánamo  —  Assigned to defend a Guantánamo detainee, jag lawyer Charles Swift joined up with legal scholar Neal Katyal and sued the president and secretary of defense over the new military-tribunal system.  With their 2006 Supreme Court victory overridden …

Thousands of Army Humvees Lack Armor Upgrade  —  The Army is working to fill a shortfall in Iraq of thousands of advanced Humvee armor kits designed to reduce U.S. troop deaths from roadside bombs — including a rising threat from particularly lethal weapons linked to Iran and known as …