Stock Market Scares Investors

Monday: President Obama goes on the road this Labor Day to spread his ideas about the economy; Also, A link that once brought Craigslist users to an "adult services" section of the website gets removed; Plus, new research shows a possible cure for peanut allergies.

Cystic Fibrosis causes thick mucus to build up in the lungs and the digestive track making it difficult to breathe. Hattie Kauffman reports on a new treatment that is providing hope for some patients.

Peanuts are among the most common causes of food allergy. Byron Pitts reports on new research at Duke University Medical Center that shows the culprit may be the cure.

Elaine Quijano reports on a strike outside the Mott's apple juice plant in Williamson, NY, where hundreds of union workers are locked in a heated dispute with the company over pay cuts.

Government officials in Kabul are trying to ease a crisis in Afghanistan's biggest bank. Mandy Clark reports President Hamid Karzai's family and political partners are reportedly seen as the root of the problem.