Another issue for current air traffic control systems is that they face interference from wind farms, which are increasingly springing up around the UK to provide alternative sources of energy.
That input by the U.S. population overwhelmingly supported the right of Americans to take dietary supplements without undue interference and regulation of the FDA and or control by the pharmaceutical industry or any other government agency.
Through the introduction of interference on specific frequencies, the attacker can theoretically force the shutdown of control channels until there are none left.
His aim now is gradually to free privatised businesses from continued interference by ministries that retained minority, but not insignificant, stakes of around 26-35% when control was sold to private-sector buyers over the past couple of years.