Israeli Prime Minister Benjamin Netanyahu says the only way to prevent Iran from getting a nuclear bomb is to draw a clear red line. Guest host Celeste Headlee discusses what his speech at the United Nations might mean for tensions between Iran and Israel. She speaks with Iran analyst Karim Sadjadpour and Ha'aretz reporter Avi Issacharoff.

Documents released today indicate that school officials may have been more concerned about James Holmes' behavior before the July 20 massacre than has previously been known.

Federal guidelines introduced in The Healthy, Hunger-Free Kids Act of 2010 have started to go into effect this school year. That means lunches feature more fruits and vegetables, and fewer processed foods. It's a big change for students who are used to tater tots and pizza.

Four other people were wounded. Early reports indicate the gunman was a former employee. People who live near the business are in shock.

Justin Lamar Sternad ran in a Democratic congressional primary, and is at the center of a scandal. He put up a warning sign at his home reading: "Trespassers will be WET." An inquisitive TV reporter ignored that, and video of him splashed in the face became an Internet sensation.

Undecided voters in Ohio got a lot of attention this week from President Obama and GOP rival Mitt Romney. Coal may be the key to many swing voters in the Buckeye State, which remains a top coal producer.

The seat that Republican former Gov. Tommy Thompson and Democratic Rep. Tammy Baldwin are vying for is one of many that Democrats are defending in November. Early polls showed Thompson might easily flip the seat for the GOP, but he's now trailing.