December 28, 2011 11:34 am Safeway Subsidiary Blackhawk Network Talks Gift Cards Blackhawk Network?s Talbott Roche explains how gift cards work and why they’ve become so popular recently. With reporters Sarah Lacy of TechCrunch and Michael Copeland of Fortune Magazine. US & World Videos 0:57 Watch: Firefighters battle structure fire in Oakland 0:35 Watch: Authorities investigate deadly collision in San Jose 6:56 San Jose mayor discusses proposed city budget 3:35 Wildfire Awareness Week: CalFire official details fire season preparations 4:15 Craig Melvin debuts new children's book