Time to call them what they are

What do you call members of the public who rampage around with guns and take over government buildings? In this country, they would be called criminals and/or terrorists. In Ukraine, though, they are just “pro-Moscow separatists”, which makes them sound almost harmless. Maybe the world should be asking where these characters got their guns from in the first place and why they are being allowed to keep them if they are not legitimate members of the Ukrainian security forces.