Ask DD what the plan is if they get there and they don't think it's safe. If it's have you bail them out tell them it's cheaper and more considerate to do that now not later.
Like I asked before WHERE AND WHAT AREA?

Is it the Dominican Republic or Miami? Nawlins or Nashville? Why won't you answer.

You have done and said all you can do. Just stop. A PP has asked you where (city) your child is headed and what area. Why aren’t you answering?