NEW YORK - Even assuming negligence on the part of 7 World Trade Co. L.P., Silverstein Development Corp., Silverstein Properties Inc., Tishman Construction Corp. and the Office of Irwin G. Cantor, any such negligence was not the cause-in-fact of the collapse of the Tower 7 of the World Trade Center in the wake of the Sept. 11, 2001, terrorist attacks, a majority of the Second Circuit U.S. Court of Appeals ruled Dec. 4 (Aegis Insurance Services Inc., et al. v. 7 World Trade Co., et al., No. 11-4403-cv, 2nd Cir.; 2013 U.S. App. LEXIS 24101).