Doctor Explores Decision-making and Diagnoses

Susan Dentzer reports on early onset Alzheimer's -- a degenerative brain disease that affects an estimated 250,000 to half a million Americans.

Susan Dentzer reports on the 'green houses' project, which seeks to re-invent traditional nursing home care and create close-knit communities.

Julia Keller, guest essayist from the Chicago Tribune, reflects on the growing number of people who wait for sleep each night in vain.

Ray Suarez sits down to talk with Tony Horwitz, author of a historical travelogue documenting his mission to rediscover America's early history.

Nobel Prize Laureate Paul Krugman discusses his research theories with Jim Lehrer after he won the last of six Nobel Prizes for his work in economics.

Medical care for older men may change after a federal task force recommendation against prostate cancer screenings. A doctor provides insight.

Terrance Hayes discusses life as a poet in Pittsburgh and shares some of his work.

A silent tribute to U.S. soldiers killed in Iraq and Afghanistan.

A silent tribute to U.S. soldiers killed in Iraq and Afghanistan.

Poet Kwame Dawes teamed up with the Pulitzer Center on Crisis Reporting to create a Web site called "HOPE: Living and Loving with HIV in Jamaica."