I've always viewed NATO as a bit of a buffet. Some of us like the shrimp and some of us like the beef. Every member of the alliance looks for something a little different from that buffet. They're looking for different things. We're not all on the same page and we should recognize that.
It's a dangerous path to go on to start a conversation such that, “If you don't share our values, then maybe it's time that you don't belong in the alliance.” That's a very dangerous path, because at what level do countries start to worry that, when Russia or somebody else starts to do something, we couldn't all just decide, well, Estonia does not really share our values, so maybe they ought not to be part of the alliance? Once they're in, I think the decision not to be part of the alliance, if it ever comes to that, needs to be more of a self-determined decision or a self-selection, rather than the alliance pushing to try to unify our values across the board, because I think that almost becomes impossible.