To "strengthen our ability to continue providing the world's most insightful and investigative reporting in journalism," The New York Times says that starting in April it will limit non-paying NYTimes.com visitors to 10 free articles per month, down from the current 20.

The Times adds that:

Our collective mental image of Mexican artist Frida Kahlo has been informed, mostly, by the vibrant self-portraits she painted over the years. But she also had a collection of photographs — about 6,500 of them — that were held privately for decades after her death at the request of her husband, Diego Rivera.

After more than a week of grueling days on a dog sled, Dallas Seavey won 2012's Iditarod, beating his father and grandfather in the process. The race took off from Willow, Alaska, on March 4, Seavey's 25th birthday. Nine days, 4 hours and 29 minutes later, he crossed the finish line in Nome as the youngest musher ever to win the race.

Seavey talks with NPR's Neal Conan about the extreme conditions of the Iditarod, from freezing dogs to sleepless nights, and what it means to be in a legacy racing family.

Sgt. Robert Bales is expected to be charged with murdering 16 civilians in Afghanistan. It raises questions about how the military screens troops. Former Surgeon General of the Army, Ret. Lt. Gen. Eric Schoomaker, and Ret. Brig. Gen. Steve Xenakis talk about how the military tests mental fitness.

NPR's Neal Conan reads from listener comments on previous show topics including the controversy over homeless hotspots, why some songs get stuck in our heads, and sober advice for former Illinois Governor Blagojevich as he begins a long sentence in federal prison.

When actor Wendell Pierce returned to his native New Orleans to help rebuild after Hurricane Katrina, he noticed a lack of grocery stores selling fresh food. Now, Pierce is opening Sterling Farms — a chain of stores in the Ninth Ward that will sell food at affordable prices for low-income shoppers.

Bo Xilai, a Communist Party chief from Chongqing, was replaced by deputy prime minister Zhang Dejiang. A report released online details why he was pushed out. The scandal could the transition of power this fall when the executive committee of the Chinese Communist Party names seven new members.

Update at 3:35 p.m. ET: It's official. Peyton Manning is indeed joining the Denver Broncos. He's talking with reporters in Denver right now.

Our Original Post:

"And they have a deal," The Denver Post reports. "An NFL source confirmed Tuesday morning the Broncos and quarterback Peyton Manning have agreed to a five-year, $96 million deal."

George Zimmerman's statement to police about what 17-year-old Trayvon Martin was up to on Feb. 26 in Sanford, Fla., "is completely contradicted" by the boy's cellphone records, an attorney for Martin's family just said during a news conference in Fort Lauderdale, Fla.