Iran is a concern to Canada for three reasons. One is the serious human rights violations and the repression of any kind of political dissent within the regime. The second is the impact that Iran is having regionally through its support of Hamas and Hezbollah, which is destabilizing in Syria itself and also in Lebanon. It poses a threat to Israel as a consequence. Only just this week, President Ahmadinejad said that Israel is a cancer that must be cut out.
However, the primary concern is about Iran's nuclear activities and its unwillingness to be transparent with the international community about what it is actually doing. It claims those activities are for peaceful purposes, but the IAEA report in November detailed evidence that there were linkages between its nuclear activities and its military activities, which then raised very serious doubts.
It is actively enriching uranium to the level of 20%, which is not sufficient to build a nuclear bomb—you need 90% enriched uranium to do that--but the process to take it to 90% once it has reached 20% is quite quick. They have sufficient uranium for approximately four bombs. This is extremely concerning.