and d.c., is this rick santorum s last stand? can he convince republicans that the race isn t already over? i m wolf blitzer. you re in the situation room. captions by vitac www.vitac.com let s begin with the breaking news. tornado emergencies right now in the dallas-ft. worth area. look at these pictures that have been coming in. this was the scene in the dallas-ft. worth area just a little while ago as the sky turns dark. we see a massive funnel cloud draw closer and then this monster tornado descends on a truck park, picks up giant trailers as if they were little toys and sends them flying. look at this. flying through the air. that s just one of the twisters on the ground today. let s go straight to our meteorologist chad myers. chad, for viewers who are just tuning in, update them on what has happened over the past hour or so. what has happened as two tornadoes, one going up 35w and one going up 35e. you have to understand, from san antonio to austin there s