Apart from the criminality, I worry about the driving standards of some from Eastern/central Europe. Hope Russia never joins the EU though. Their driving has got to be some of the worst. Never been there, but going by the numerous Ruskie car crash vids on Youtube, they have a kamikaze attitude on the roads. Seem to have no fear, or perception of hazards.
The fact that a lot of Russian cars have dash-cams tells a story. Must be the cold or vodka that affects a lot of the driving. Roads that seem to be snow and ice covered for a lot of the year can't help.