All flights in Canada have been cancelled. Canadian Airports are scrambling trying to deal with an increase in international flights.

Osama Bin Laden seems to be the leading contender for responsibilty for this. But as we have just been reminded on the radio, after Oklahoma it was thought to be international terrorism and that wasn't. At this moment a lot of what we hear is rumour and unconfirmed, educated and intelligent rumour, but rumour nonetheless.