Yes Australia has been negotiating with Indonesia re: illegals who have been heading towards Indonesia. Intelligence circles sometimes find out about these planned travels before they even reach Indonesia.

Re: illegal fishermen; some have been known to be armed with both personal guns & bigger weapons. Pirates in a respect. So the navy is always careful.

Birdy probably hears more about these happenings since it's nearer to her.

Re: Mexico's illegals. Something similar could be negotiated between the USA & Mexico. Perhaps Mexico stepping up it's border controls under USA sponsorship.