AlQa'dah 16, 1432, Oct 14, 2011, SPA -- Canada's Premier Stephen Harper today depicted Iran as the biggest threat for world peace and security. The France Press quoted Harper as saying in remarks on the plot targeting the Saudi ambassador to the United States : "we have no difference with the Iranian people, but the current regime in Tehran represents most likely the biggest threat for world peace and security". Earlier, his Foreign Minister John Baird said that his country and partners are considering what sanctions should be on Iran as regards the alleged plot. Canada condemns the foiled plan on the life of the Saudi ambassador on the U.S. territories, the Foreign Minister of Canada said, adding that "the signals for Iran regime's involvement are very serious".