Well, it's thought that the machines have become more reliable. They have had a lot of upgrades and better software, etc., but the fundamental principle remains largely the same.
On March 20th, 2018. See this statement in context.
On March 20th, 2018. See this statement in context.
Acting Director General, Science and Engineering Directorate, Information, Science and Technology Branch, Canada Border Services Agency
Well, it's thought that the machines have become more reliable. They have had a lot of upgrades and better software, etc., but the fundamental principle remains largely the same.
See context to find out what was said next.