They'd have to know about the canary before they could force you to maintain it. :) You're right though -- it's likely that it wouldn't hold up in court -- the

They'd have to know about the canary before they could force you to maintain it. :) You're right though -- it's likely that it wouldn't hold up in court -- they'd just call it "a clear example of communication by omission" or something. If they want to get you, they'll find a way.