Actually, when asked that question, I sought and later that day got information, which was provided to the media, about those who were not at the border but were in fact undergoing the process of determining their security background checks. A second security background check takes place in those processes. The CBSA added more resources of approximately $6 million in the summer immediately after that ATIP was responded to, and the entire backlog has been cleared.
On February 20th, 2019. See this statement in context.