The government agency that owns the World Trade Center site said Friday it intends to hold Saudi Arabia and nearly 100 other defendants liable for the Sept. 11 terrorist attacks that killed nearly 3,000 people and destroyed the complex.The Port Authority of New York and New Jersey announced that it planned to join late Friday as a plaintiff in a lawsuit filed a week ago by Cantor Fitzgerald Securities, a bond trading firm that lost two-thirds of its workers in the trade center attack.Full Story