The National Association of Letter Carriers wants you to help them "stamp out hunger". Today, city leaders gathered at the main post office to sign a proclamation to declare this Saturday as national food drive day. It's the largest effort in the country to collect cans of food to help families in need. Postal service employees say donating cans is as easy as leaving mail to be picked up. Last year, the Laredo postal depot raised nine-thousand pounds of food which stays local.