Tension on the streets

It's all over the news at the moment: there have been street fights following the death of a Moscovite "soccer-fan" who was killed by migrants from the Southern part of the Russian Federation.
Following a soccer match, supporters of the Moscow team mixed with Nazi-type "Russia for Russians"-activists got in a fight with People from the Caucasus-region of the Russian Federation. The battle resulted in one Moscovite dead, shot with one of the "non-lethal" rubber bullet guns that are widespread all over the world now and fired by one of the Caucasus-supporters.
Note, not just for our North American friends: Caucasians here don't look like WASPs. They come from the Caucasus, are much darker and Asian-looking than the white settlers who came to America from Europe, and they are often muslims.
Four of the Caucasians involved in the fighting were taken into custody and three were released shortly afterwards, given that the police had identified the killer and didn't need the others anymore. News of these releases came at the moment of the funeral of the Moscovite and it all escalated again. One of the main roads of Moscow (Leningradskoie Chaussee) was blocked for hours by the crowd.
Last Wednesday, December 15th, immigrants from the Caucasus had called for a big demonstration for their rights and against the supremacy vindications of the Russian nationalists. The demonstration was due to take place at 4pm around Kievski Railway station, so as an expat I received warnings from two independent sides telling me clearly to stay off the streets and particularly far away from the Kievski Railway station in the afternoon of that day. The police was faster than that and arrested about 800 people likely to participate in the demontsration in the course of the day and access to the Railway station was intensly screened. Thus protests dispersed to other parts of town.
Yesterday, Saturday December 18th, I took the metro to go to the market that is not very far from Kievski Train Station. This time, I found the market ;-)
The number and look of police (helmets, sticks, bullet-proof vests) in the metro and even on the market (!) was incredible. I saw Caucasian-looking people being intercepted by police, having to show their passports (which one must carry at all times anyway) and taken to a militia station on three occasions during this short shopping excursion.
Today, reports say that 1.300 people were arrested yesterday alone, both from the nationalist as from the immigrant camp.

Peter went for a drink with a Turkish friend yesterday who told him he was not taking the metro at the moment, because of the likelihood of things happening to him. Also, Russian Nationalists groups have been reported to attack Caucasians even there in the underground.
So, for us the only change is: even more police than before.