The New Air Force Mission?

mvnicosia asks: "The US Air Force has released its new mission statement, which reads 'The mission of the United States Air Force is to deliver sovereign options for the defense of the United States of America and its global interests -- to fly and fight in Air, Space, and Cyberspace.' With the recent rows over US Internet governance, what do you think is the impact of a US government overtly practicing cyberspace warfare? And what are the US's legal limitations?"