Certainly there are a number of different issues here. When it comes to diseases such as Ebola, that disease is found in Africa, and it obviously would have to come by air or marine when people travel, so virtually all those exotic diseases would come by air or marine.
With other diseases, such as tuberculosis, screening is done for tuberculosis with immigrants, which CIC is involved with. People have to go through a medical and they're tested for that before they're allowed to immigrate. We also share a lot of information with the United States on diseases such as tuberculosis and some endemic diseases we have within the countries. So we have very good knowledge of what diseases are circulating between our two countries, and very similar patterns.
The primary threat for us is these exotic diseases, diseases Canadians would not have any experience with. They're the ones that tend to be the most problematic, so that's why we're more focused on the air and marine, because they're more likely to come from—