The question of Russia came up very strongly, and as I understand it (everything that follows is effectively what that speaker said) the feeling is that they're going to just keep doing things, testing the limits, seeing what they can do without repercussion. The deployment of chemical weapons on the streets of the UK in peacetime (which, the talker suggested, would have been absolutely off the table during the Cold War) is just another step in seeing how far the West can be pushed without doing anything. Shielding the government of Syria so they can routinely deploy chemical weapons in their civil war is another example; Russia will just keep taking liberties until they find where the limit is (if there is a limit). Not so long ago, the deployment of chemical weapons was considered a very serious thing; Russia has put them back on the table while the West sits on its hands.
I have to wonder if there is a limit, or if we will continue to put prosperity above security to the point that Russia has free reign to do what it likes (up until it runs into someone who will object, beyond Europe).