AOG
It is traditional for MPs who reside in the UK parliament to be interviewed outside it, or people commenting on the UK Governments policies such as the Tamils, to be outside it. It is not traditional for a European Party with no elected MPs to be photographed out it.
There is no good reason why they should be posing outside the British parliament. They have not been elected there. It is a stunt to making people think they have.
This BNP stunt was secretly organised and hastily staged. That is why there were not sufficient Police there. The 'mob' were mainly students and they were quickly on the scene through the use of 'Twitter'.
Unite Against Racism, the group involved her are not a communist organisation. They have support from across the political spectrum . Would david Cameron be a supporter if it was communist?
http://en.wikipedia.org/wiki/Unite_Against_Fas cism