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When tragedies happen, comparisons are always made to past events. It's become part of the news coverage of the Aurora, Colo., theater rampage to refer to it as "one of the deadliest mass shootings in recent U.S. history," as The Associated Press says.

The wire service has a list — "Some of the world's worst mass shootings" — that includes many that happened in the U.S.:

The Denver Post continues to dig into the life of James Eagan Holmes, the 24-year-old suspect in the shooting rampage Friday in Aurora, Colo., that left at least 12 people dead and about 58 wounded.

Friday, as Eyder wrote, an image emerged of Holmes as something of a recluse.

Host Scott Simon talks with NPR's Tom Goldman for a preview of the 2012 Summer Olympics in London.

Businesses in Aurora, Colo., sprang into action Friday to assist victims and their families. Kevin Hougen, president of the Aurora Chamber of Commerce, worked with businesses to help provide necessities to victims of the shooting. Host Scott Simon spoke with Hougen Friday from his office, which overlooks the movie theater.

In the unfolding LIBOR scandal, attention has shifted to why U.S. financial regulators, who knew about the rate rigging, didn't move to stop it more swiftly. Host Scott Simon talks with Robert Smith, a correspondent for NPR's Planet Money.

For many, the shootings in Colorado Friday seem like an echo of the tragic shootings at Columbine High School 13 years ago. James Johnson is the chief of Police for Baltimore County and a 34-year veteran of the force. Host Scott Simon speaks with Johnson about changes in police tactics since Columbine.

Host Scott Simon talks with 72-year-old Irv Gordon. His 1966 Volvo P1800S needs about 30,000 more miles to reach the 3 million-mile mark. His license plate reads, "MILNMILER."

Host Scott Simon talks with Tom Olbrich of the Jefferson Center for Mental Health in Denver about some of the lessons learned about treating patients post-Columbine shooting.

The phrase "theater number 9" may soon be one of those added to our collective memory. That is where the shootings in Aurora, Colo., took place. It has some movie goers wondering about their safety in cities across the country.

Transcript

SCOTT SIMON, HOST: