Football's Concussion Crisis
NFL Commissioner Roger Goodell promised today that the league would do more to protect players' health. Questions about the safety and future of football loom over this weekend's Super Bowl.
• Patrick Walsh, Junipero Serra High School head football coach
• Dwight Hicks, actor and former San Francisco 49er
• Mark Fainaru-Wada, ESPN investigative reporter and co-author of League of Denial
Combating Chronic Homelessness
Despite decades of efforts and billions of dollars, homelessness remains one of the Bay Area's toughest problems. Now San Francisco is launching a one-stop center aimed at helping the chronically homeless. Thuy Vu talks with the mayor's point man on homelessness, Bevan Dufty.
Tracking elephant seals
Thousands of elephant seals migrate to Año Nuevo State Park every winter. New technology is allowing researchers to track the massive marine mammals during their trip. Scott Shafer talks to UC Santa Cruz biology professor Dan Costa about what scientists are learning.