On Bandera, the OUN-B and that flag...
Actually I think that flag was the flag of the Ukrainian Insurgent Army (UPA), the Ukranian partisans who towards the end of WW2 fought both the Germans and the Soviets, under he leadership of the OUN-B, but as a wider anti occupation army than just the OUN-B.
From what I've been reading, it'd seem that there are effectively 2-3 different parts of the UPA,
1 - the original OUN-B fascist Nazi collaborators who originally fought with the Nazis to liberate the Ukraine from Polish and Russian occupation, then collaborated with for the first couple of years of Nazi occupation, including participation in the holocaust, and massacres and ethnic cleansing of Poles, Jews and Russians...
2 - The partisans of the UPA who joined to fight against Nazi & Soviet occupation, and continued with the ethnic cleansing, as well as attacking Ukrainians who opposed them.
3 - The anti-occupation UPA who fought the Soviet occupation for 5 years after the supposed end of WW2, with around 100,000 fighters claimed to have been killed by the Soviet army, and a lot more sent off to work camps in Siberia. I get the impression that this force became a much wider ranging anti-occupation force than the previous largely fascist organisation from the war, and will certainly be the part of the organisation that has the most wide ranging links as millions of Ukrainians now must have parents / grandparents / relatives who fought and died with the UPA in this period.
I suspect that many / most in these protests are identifying mostly with the much broader anti-soviet occupation era version of the UPA when using those flags and showing the image of Bandera than they are identifying specifically with the original fascist starting point for it, and the war crimes that it committed.
The level of Soviet repression and killing while putting down this insurgency will also explain a lot of the deep hatred of Russia, particularly in the West of Ukraine, and why they're not going to accept a move away from Europe towards Russia.
Not that there won't also be a fair amount of genuine fascists there, but I think this history of the organisation probably helps to explain some of the historic reasoning for why none fascists might be prapared to share the baracades with fascists under the banner of the UPA when fighting against the pro-Russian factions in the country.
To give an idea of the level of support for this in the West of the Ukraine, here are 2009 poll figures for opinions of Bandera
The picture is very different in Central and particularly East Ukraine.
So my conclusion fwiw would be that the widespread presence of this flag, alongside the Ukrainian flag isn't necessarily that indicative of the level of outright fascists within the protest, and it's certainly helped me to get my head around why such large numbers of protestors who aren't fascists themselves are prepared to fight alongside fascists under these 2 flags.
Some background reading for anyone interested.
http://www.nybooks.com/blogs/nyrblog/2010/feb/24/a-fascist-hero-in-democratic-kiev/
http://hnn.us/article/122778
http://en.wikipedia.org/wiki/Stepan_Bandera