The biters bit

Anti-Trident Rally Glasgow.
I've been on various marches and rallies in my time- anti-nuclear, anti-student loans, drop the debt etc. Arriving in Glasgow for the football today I saw this anti-Trident rally and took a few photos. 
A little paranoia makes me wonder if there are secret agents among those taking photos... these two look bona fide press photographers though, the British state couldn't afford a big lens like that!