It was so scary when a huge truck become a terrorist weapon which has been used in France & now Germany. I 'm not surprised if same terrorist act  could happen in US or Canada. Look at whom this government sponsored and let in last year. With porous vetting process which was done in a rush to meet Liberal 's silly year end deadline,  I don't know if all of them were screened properly, all ISIS/Al Qaeda  needs is handful of their followers split through out of 35,000 to carry the same terrorist act.