That is true, but doesn't seem to totally fit with this case. First, DC has been here for a while, correct? She's not a new immigrant. Second, she has had discussions not only with LE but also with legal representatives, and yet she remains quiet as to where MC is. It just doesn't seem to entirely fit. One can assume all her actions since Thanksgiving have been under coercion, yet even their stories don't line up. Something is definitely amiss here, and it doesn't seem to add up to simply a matter of keeping her daughter safe.
Of course, all of this is from an outside perspective. We really don't know what all DC has actually said to LE.
I think LE is playing this case close to the vest for good reason, which may come out in due time. In fact, it is entirely possible that DC has told them more than they are sharing, because they don't want it getting back to him.
But it still seems as if something is off here.