With the likes of the Apple iPhone 5s and Samsung Galaxy S5 now offering fingerprint sensors, the smartphone industry has become increasingly sci-fi - a tad more James Bond, if you like - in recent times. But for a truly secure experience, one would need much more than these emerging, albeit reliable implementations, and this is where airplane maker Boeing steps in, with a smartphone offering the kind of robust security features that only a government agency - or indeed, a government agent - would require.