A creditor's effort to evict Global Crossing Ltd. from a New York site where a fiber-optic cable from England hooks into the network of U.S. land lines would wipe out a third of Global's transatlantic telephone traffic and slash the company's value to potential buyers. ... [The motion] shows the precariousness of Global's vaunted worldwide network and the dependence all telecommunications companies have on each other, especially at a time when financial troubles seem to be having a domino effect. ...