Arctic air , a Canadian export, not ledgered in any book of trade, replaced hunger as the body's sole attention. There will be time for additional Canadian exports: wheat, canola, eggs, bacon, beans, potatoes... But the temperature plunge routed the homeless last night from their million dollar bridge encampments, scattering their shanty collective, into a forced survival march to heated shelters. "Praise the Lord. Praise the Lord. Come in my children. God loves you."