Oh Lala, I feel your pain!  I cried when I read your posting because we went through the same thing!  My younger son and I walked all over that entire airport hoping to find my son.  Finally at 0700 we decided it was futile and left.  I wanted to cry because I had his things and couldn't give them to him and the night before I just kissed his cheek and said I will see you in the morning!  Oh for one more hug!  So Grad and go parents, when you drop your child off at base, hug them like you will never see them again and tell them every thing you have wanted to tell them!  Go to the airport in the morning, but as Lala said, don't be sad if you don't get to see them off!