A quick note for your reference. I made it through airport security without any hitches. My lunch box had a salad that I made at home. It was in a plastic bowl. I had a small container of hummus (like 3 tbsp worth). Two small bags (1/2 c) of grapes, a few of my homemade cereal bars, a 100 calorie snack pack and a pita wrap. You can't use anything to keep your items cool though.
My trip on Delta was perfect - this time. The only other thing to note was the fun people watching in the Atlanta airport. What is up with those 4 or 5 inch high heels ladies?