Getting a firm number on rates of human trafficking, as you probably know, is very challenging. The measures we've put in place with respect to human trafficking are relatively new, so I think it's probably too soon to say at this point what those numbers are, even from a trend perspective. I'll defer to Ümit as well in a moment. He may have some views on that.
In terms of sites, my colleagues in the operations sector, who are really on the front lines here, I'm sure would say that there are particular geographic regions in the globe where there is a higher prevalence of human trafficking rates than in other areas. I know that the operational guidance and the training that the department provides to those visa officers are targeted in that geospecific way, and they use different techniques depending on where they're located in the globe, as the techniques that are used vary.
Ümit, did you have anything to add?