Trump's commencement speech at the Coast Guard Academy. He called out human trafficking in particular. The quote is this:

"You will battle the scourge of human trafficking. Something that people haven't been talking about. One of the big, big plagues of the world. Not our country only. The world. Human trafficking."

https://www.youtube.com/watch?v=gQ-e7fVsAwk (at the 9:50 mark)

This is in light of the /pol vid showing the movement of ships between Libya and Italy, as well as a few posts on here discussing shipping lines as a method for traffickers.