Preps are reaching new heights. Look at the framework for two giant tents in the parking lot. No parking signs have been changed to no stopping signs. Will you find rows and rows of metal barriers and on the stadium this team of three worked piece by three to install a huge billboard of the lombardi trophy. They have tarps ready to go in case of freezing conditions or rain. A special Training Session was held at the San Francisco airport today to help employees fight human trafficking. Authorities say they worry the influx of people for superbowl 50 will also create opportunities for human traffickers to bring in their victims. Today people that work for sfo and the airlines were trained to spot people involved in this illegal activity. The victims are often young and vulnerable and headed for a life of forced prostitution or forced labor and will show signs of physical or Emotional Abuse likely. Are they frightened, ashamed or nervous. Are they afraid of uniformed security. Under the