Last week, the Manhattan-based First Department of New York's Appellate Division sustained a jury's finding that the Port Authority of New York and New Jersey was liable in connection with the 1993 World Trade Center (WTC) attack. Now, unless the New York Court of Appeals -- New York's highest court – reverses that decision, the Port Authority will be required to pay up to $100 million in damages to 55 attack victims (or, if the victims are deceased, to their families). In this column, I will focus on how the court dealt with the most difficult issue ...