AdvertisementLandfill Of Lettuce: Why Were These Greens Tossed Before Their Time?June 16, 2015Allison AubreyfacebookEmailCesar Zuniga, operations manager at the Salinas Valley municipal dump in California, points to salad greens that still have two weeks before their sell-by date. "Some loads ... look very fresh," Zuniga says. "We question, wow, why is this being tossed?" (Allison Aubrey/NPR)