Bay Bridge Corrosion, Silicon Valley Earnings and Bringing Back Extinct Species

Bay Bridge Corrosion
Elected officials are calling for an independent examination of corrosion on a critical part of the new eastern span of the Bay Bridge. An investigation by The Sacramento Bee found that some of the most vulnerable and vital sections of the bridge's suspension system are rusting. Scott Shafer hears from Charles Piller, who broke the story.

Guests:
• Charles Piller, Sacramento Bee investigative reporter

Further Reporting:
• Outgoing Official: Caltrans Should Have Reported Bay Bridge Leaks Earlier
• Report Blasts Caltrans for Handling of Bay Bridge Construction Problems
• More Bay Bridge stories on KQED's NewsFix

Silicon Valley Earnings
It's corporate earnings season and the spotlight is on Silicon Valley, where many tech companies reported record profits last year. Yahoo! and Intel are among the companies that beat Wall Street expectations, while others, including Google, fell short. Is another bubble in the making, and is economic prosperity trickling down?

Guests:
• Jeremy Owens, San Jose Mercury News online business editor
• Steve Wright, Silicon Valley Leadership Group senior vice president

De-Extinction: Bringing Back the Passenger Pigeon
Scientists are investigating new genetic technologies that could bring back extinct species, from the wooly mammoth to what was once the most abundant bird in the world, the passenger pigeon. Bringing species back might be a way to correct past mistakes or even to help endangered species, but just because we can, should we?

Don't miss the half-hour documentary Reawakening Extinct Species, premiering April 23, 2014 at 7:30 p.m.