The U.S. and Canadian governments are augmenting the aging North Warning System with a new radar network armed with classified collection capabilities called "Crossbow," which is intended to improve the ability to detect approaching airborne threats while the two nations work to develop and build a new Over the Horizon Radar system. Melissa Dalton, assistant secretary of defense for homeland defense and hemispheric affairs, disclosed the U.S. role in the program -- which Canada is leading -- during testimony before...
