It's a shame how many of our rights are being curtailed in the name of "National Security".
As far as I've been able to ascertain from the article, Mr. Kerzic was standing in an area designated for use by the public. It does not appear to be a restricted area, and from what I can see from the photograph in the article, there are no signs warning against photography by the public.
However, as bad as we may think it is here in the United States (compared to the pre-9/11 world), things are much worse in the United Kingdom. The rights of the Individual in the UK are enshrined in Common Law (i.e., customary law passed down through the ages), and not explicitly delineated in any sort of constitutional document.
For example, in the US, we have a
Constitutional Amendment guaranteeing the right against self-incrimination. A
recent court case implies that this right includes encryption keys: If a law enforcement agency impounds your laptop for analysis, but can't get anything out of it because the contents have been encrypted, too bad for them.
Handing over the encryption key would be a form of self-incrimination, so you don't have to do it.
On the other hand, laws, ordinances, and Police reactions regarding individual freedoms can and often do change at a whim,
depending on what is expedient at the time (8th paragraph, about half-way down). In addition, since the right against self-incrimination is based on Common Law, and not written as an explicit right, ordinances like the
Regulation of Investigatory Powers Act can easily
curtail and eliminate such rights. As usual, some groups say that
even these powers do not go far enough, invoking the familiar mantra of "National Security".
And these things are happening in two of the most "open and democratic" societies the world has ever seen...
And on a side-note, here's an interesting question: Who's standing in the "restricted" zone across the tracks taking the picture of the "public" train platform?