The heads of the Federal Communication Commission and other telecommunications agencies Thursday began drawing a map for handling the nation's increasing demand on radio frequencies. The Department of Commerce's National Telecommunications and Information Administration convened the "Spectrum Summit" to discuss how private and government radio license holders could most equitably share the finite, crowded number of radio bands available, said Commerce Secretary Donald Evans. "This administration clearly understands the role spectrum management will play in the future of our economic security ... now more than ever, we're aware of its impact on national security," Evans told the gathering. For schools,...