[lowpro]

I think the US part of this is that it's not some theoretical "don't talk to people who have interests that don't align with you", it's that actually talking to the cops in the US can never help you, only hurt you. If you incriminate yourself or lie to them that can and will be used against you, but if you make a good argument or have a good reason that will not be used in your defense.

By design, "anything you say can and will be used against you" which is a one way street.

*Note: have a lawyer in the family