Goodbyes are hard.  I was standing in a security line at an airport not long ago preparing to go through the regular process that has become so much a part of flying.  In front of me was a young lady who was weeping.  Occasionally she would turn around and strain to see if her loved one was still there.  A faint smile.  A wave.  Another goodbye.  With all that has changed about travel through the years, some things never change.  It is not easy to say goodbye to those you love. My attitude was much different than the young lady who was in line with me.  You see, I was going home.  On the other end of my flight was…