US Defense Secretary Chuck Hagel announced at the National Security Agency headquarters last Friday that the Pentagon would triple its cyber security staff – to 6,000 - over the next few years to defend against computer-based attacks. That's great. I wonder how Hagel is going to face the music when he visits China later this week where he expects to be grilled on the latest NSA revelations and aggressive US cyber spying. Just last month, it was revealed that the NSA has for years assessed the networks of Chinese telecommunications company Huawei, which the US House of Representatives has long advocated that US companies should avoid on the grounds of national security.