Sunday-morning shoppers across metropolitan Washington were greeted yesterday by Safeway and Giant workers -- members of UFCW 400's bargaining committee -- and their community allies, who urged them to show their support for good local jobs by signing support cards as contract negotiations continue. photo: UFCW 400 bargaining committee member Vivian at the Fairfax Safeway. photo courtesy UFCW 400; more on Twitter ‏@UFCW400