Clyde Prestowitz : Debate shows neither candidate understands details of global trade dynamics . The major value of these devices is in the semiconductors , electronic displays and other key components . Prestowitz : The major value of iPhones is in the semiconductors and other key parts . He says U.S. producers do n't know how to make these key components anymore . Clinton :
Clyde Prestowitz : Debate shows neither candidate understands details of global trade dynamics . Prestowitz : The major value of iPhones is in the semiconductors and other key parts . He says U.S. producers do n't know how to make these key components anymore . Clinton :