The majority of the products used today are assembled or the processors that make them function are outsourced to third parties based elsewhere in the world.
The reality is that in this war the American citizen is collateral damage. Inter-connectivity at the appliance level significantly increases our risk and vulnerability. Appliances have been designed to communicate with the host computer and self diagnose when necessary. Automobile computer systems have to be periodically upgraded like a home computer. Toyota demonstrated this admitting that their vehicles have over 1 million lines of computer code. Should an attack ever focus at the means we use to function and be successful, the result would be devastating as we as a country would become paralyzed.
To win this war the strategy needs to begin at the ground level. In addition, to our privacy, our well being is at risk.