ukraine s allies have so far promised more than $65 billion of military aid. the united states has been by far the biggest donor. none of this, of course, has brought the war to an end. most people agree that it s likely to go on for a lot longer, killing even more people and swallowing up vast resources. with no peace process in sight, the cost of this terrible war can only rise. a fierce winter storm is causing widespread disruption in the us and a rare blizzard warning has been issued for parts of southern california with millions of residents told to brace for unusally cold weather and snow. i m joined now by professor alison bridger, professor of meteorology and climate science at sanjose university, california. this weather event seems to have caught many people by surprise. why is that, is it