Estimates say around 10,000 women were trafficked into the Miami area for the 2010 Super Bowl. Some believe there will be just as many brought to the New York-New Jersey area for this year's game weekend. US government agencies are working with Delta and a handful of other regional carriers on training their employees to spot signs of someone who is being transported against their will. Government officials getting more airlines to implement training has been slow going. Year-round, the United Nations estimates human trafficking in the US generates $9.5 billion in revenue.