You're kidding me...this day and age?! Might have to get my guns out again since cant depend on those at the Pentagon to protect me!! Where's my Full Auto Shotgun---oh, yeah, cant have since Mil & Law Enforcement only!!
Hacking the email is small potatoes. Pres. Clinton warned about Internet Warfare, and recently China was in the news for developing Internet Warfare capabilities. We assume that the U.S. also has this ability. Business, industry, the police and everything else is too dependent on the Internet.
Even the country of Estonia was attacked by Russia via computer DDOS attacks. Internet warfare IS coming to be sure. You're right, China HAS actually shot down satellites, successfully, out of orbit. This time it was a test run, but they CAN shoot our satellites down we know. ALL Al-Qaeda has to do to defeat us, is get China to shoot down our satellites (GPS won't work) and cripple our computer systems, then America has no chance in hell...
When all the satellites are destroyed and the cell phone and internet networks are taken down, what are we going to do? I tell you what were going to do, we're going to depend on the amateur radio operators of the world to send our messages, like me. lol
HAMs were sending email and data packets across radio waves before the internet was cool.