The US Department of Defense told a Washington thinktank yesterday that it would spend $23 billion in the next four years to kick its cyber defenses up a gear. That'll include building out a "secure 4G wireless network that will get iPads, iPhones and Android devices online by mid-2014," according to Joint Chiefs of Staff Chairman Martin Dempsey. The DoD recently approved Blackberry 10, iOS and Samsung Galaxy devices with Knox, and General Dempsey himself was packing a smartphone he said would "make Batman and James Bond jealous." While there were no details about how such a mobile network would be locked down, he did say that all 15,000 of the Department's computer networks would be consolidated into an enterprise cloud system to increase security. All that is to combat a "17-fold" cyber warfare increase in just over two years -- no doubt including recent Chinese hacking that the White House took the rare step of recently highlighting.