Humanoid robot mouth unveiled at expo July 18, 2011 Inventor Hideyuki Sawada’s robotic mouth was one of the highlights of the Tokyo's Robotech Expo. Felipe Maya reports.

Study: Children safer when driven by grandparents July 18, 2011 A new study shows that children have a 33 percent lower risk of injury when being driven by their grandparents. Jeff Glor reports.

Hacking scandal widens: Top cop quits July 18, 2011 Elizabeth Palmer reports on the latest details of the News of the World phone hacking scandal, including the surprise resignation of London’s police chief and the arrest of Murdoch's top ...

Study: Google linked to lower memory retention July 18, 2011 Recent studies conducted at Columbia University show the effects Internet search engines have on human memory retention. Joshua Foer, 2006 memory champion, speaks to Chris Wragge about the studies.

Betty White: Latest celeb invited to Marine ... July 18, 2011 A third marine, Sgt. Ray Lewis, released a YouTube video inviting actress Betty White to the Marine Corps. Ball. Other celebrities that were invited include Mila Kunis and Justin Timberlake. Jeff ...

Brooklyn supermarket using smells to boost sales July 18, 2011 A supermarket in Brooklyn is using specialized scent machines mounted on its walls to entice customers to purchase more. Taryn Winter Brill reports on the marketing campaign.

Feed: Beyonce wakes up Atlantis space crew July 18, 2011 Beyonce woke up the Space Shuttle Atlantis crew with a live performance; GQ released a list of "worst dressed" cities; A Canadian radio station advertises outside Casey Anthony’s prison and ...

Gen. Petraeus ends command in Afghanistan July 18, 2011 In a ceremony in Kabul, Gen. David Petraeus handed over command of NATO forces in Afghanistan to Lt. Gen. John Allen. Jeff Glor reports.

L.A.'s "carmageddon" avoided, I-405 ... July 18, 2011 In Los Angeles, traffic is back to normal avoiding the "carmageddon" prediction. Construction on Interstate 405 was completed a day ahead of schedule. Jeff Glor reports.

Video shows dog attacking shark in ocean July 18, 2011 Video from Australia shows a dog attacking a shark in the surf. Jeff Glor reports.

Debt negotiations: Obama, GOP in stalemate July 18, 2011 National Journal’s Major Garrett and political correspondent Jan Crawford speaks to "The Early Show" anchors about the ongoing debt negotiations in the face of the Aug. 2 deadline.

Veterans and dementia July 18, 2011 New research shows a link between older veterans who had a traumatic brain injury and an increased risk of dementia. Dr. Jennifer Ashton profiles a young Afghanistan veteran who could be at risk.

Survey: More hiring for rest of 2011 July 18, 2011 A new survey released shows 43 percent of its participants say their companies will likely increase employment in the next six months. Jeff Glor reports.

Hay shortage in Texas due to drought July 18, 2011 The ongoing drought in Texas has caused a severe hay shortage, forcing farmers to use winter reserves to feed their cattle. Dr. Debbye Turner Bell reports.

Heat warnings issued across U.S. midsection July 18, 2011 Excessive heat warnings have been issued for much of the nation’s midsection. Cynthia Bowers reports on the latest of this summer's record-breaking temperatures.

Casey Anthony’s safety after jail July 18, 2011 Casey Anthony was released from a Florida jail 12 days after she was acquitted of murder. Karen Brown reports on the latest of Anthony’s release and her safety after jail.

Stage collapses at music festival in Canada July 18, 2011 At least eight people were hurt in a frightening stage collapse at a music festival in Ottawa, Canada. Jeff Glor reports.

Murdoch CEO bailed after questions on hacking July 18, 2011 Murdoch CEO Rebekah Brooks has been released on bail after being arrested by British police investigating the News of the World phone hacking scandal. Elizabeth Palmer reports.

What’s next for Murdoch's News Corp.? July 18, 2011 The Daily Beast’s Lloyd Grove speaks to Chris Wragge about the arrest of Murdoch's CEO Rebekah Brooks and what's next for the News International following the News of the World ...

Two dead in Western N.Y. bus crash July 18, 2011 Federal officials are investigating a deadly tour bus crash in Western New York. Two people were killed and 35 others hurt. Jeff Glor reports.