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Deciding if I am detained: a rule of thumb.
If I receive word about an urgent emergency, such as my wife being hit by a bus or about to give birth, can I immediately go to the hospital? If yes, I am free. If not, I am detained.
This rule breaks down a bit on amusement park rides, but one would assume the ride operators would immediately let you off if you could communicate with them and, in any case, you're only going to be stuck there for a couple of minutes at the most.
Mukerjee was not in "limbo". He was detained. When someone chooses to redefine words White-House-style I tend to view whatever else they say as though they are serving an agenda.