Chester County Food Bank agricultural director Bill Shick covers a hydroponic growing bed holding lettuce inside a "tunnel" greenhouse, where the program grows seedlings, in suburban Philadelphia, ... more 
Chester County Food Bank agricultural director Bill Shick covers a hydroponic growing bed holding lettuce inside a "tunnel" greenhouse, where the program grows seedlings, in suburban Philadelphia, Pennsylvania November 21, 2013. REUTERS/Tom Mihalek less 
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Reuters | Photo By TOM MIHALEK / Reuters
Sun, Nov 24, 2013 7:10 AM EST