Officials at NATO's Allied Command Transformation last month kicked off a study of future security threats to alliance countries, and the review is expected to guide crucial policy decisions at NATO's 60-year anniversary summit next spring, according to documents and sources. The study, dubbed "Multiple Futures," follows on the heels of a March 15 speech by NATO Secretary General Jaap de Hoop Scheffer, in which he called for a "sound evaluation" of military requirements as NATO leaders ponder the alliance's...