Children laughed and screamed excitedly as they held their balloons up in the air waiting for the countdown to finish so they could let go and watch them float away. The children and many volunteers with the Georgia Mountain Food Bank celebrated the launch of the food bank’s Summer Lunch Bag Program with a kickoff event Friday afternoon at the Boys & Girls Clubs of Hall County in Gainesville. The program aims to feed some of the county’s most at-risk children during the summer when they’re not receiving free or reduced-price lunches at school.