The Department of Justice has launched an investigation into movie theaters that make deals with studios to box out competitors. CBS News justice correspondent Paula Reid has the latest on the allegations. Source

Preliminary research found that wearing contacts could drastically change the composition of microorganisms on the human eye. Dr. Christopher Starr spoke to CBSN about what this may mean for the 71 million people who wear contacts. Source

It is a tale of three families connected to three tragic planes crashes in the city of Elizabeth, New Jersey, during the winter of 1951-1952. Blume’s past works have traditionally focused on issues young readers can connect to but Blume’s new book takes on a very adult tone. The iconic author joins “CBS This Morning” to talk about the new book and her historic literary career. Source

Backlash continues to grow over the comments made by a radio consultant who said stations would add listeners if they cut down on the number of songs by female artists. The country music superstar has six number-one hits and has sold over 18 million records. She joins “CBS This Morning” from Nashville to address the controversial comments. Source

Nick Dietz compiles some of the latest and greatest viral videos, including a cat that locks itself in the closet and an inspirational speech by Shia LaBeouf that’s spreading like wildfire. To see these videos in their entirety, click HERE. Source

Negotiators for Iran and the U.S. have only a month left to finalize a deal to curtail Iran’s nuclear program. As Elizabeth Palmer reports, there are key issues that have yet to be worked out. Source

Survival rates for brain cancer vary depending on the type of tumor. But a certain type of immunotherapy has seen some success. CBS News chief medical correspondent Dr. Jon LaPook reports. Source

The U.S. Senate failed to reauthorize provisions of the U.S. Patriot Act that allow for the bulk collection of U.S. phone records. While some members of Congress see the collection as a necessary tool to fight terrorism, others call it an invasion of privacy. Nancy Cordes reports. Source

Officials turned to cleanup efforts Monday as swollen rivers started to recede. Omar Villafranca reports. Source

A “48 Hours” interview with the wife of a millionaire shot dead turns the case upside down. Is there more to the story of what happened? Peter Van Sant has the story Saturday, Sept. 3 at 10 p.m. ET/PT on CBS. Source