Rescue workers search for survivors in Joplin

Forty years to the month after a paralyzing tornado struck Joplin, MO in 1971, rescue workers carefully search the again devastated city for survivors of last night's storm.  KCUR's Dan Verbeck joined us from Joplin during today's St. Louis on the Air.   90 people are now confirmed dead due to the tornado, but one fire official told Verbeck they expect the toll to rise to at least 100.