Here are the big stories on the agenda today:
- The damage being described as "unbelievable" in one Missouri town – where a killer tornado touched down last night. See an iReporter’s view of the massive funnel cloud.
- Sadness turning into anger and frustration, in day two of hearings into the deadly plane crash outside Buffalo, New York. Family members want to know why their loved ones lives were in the hands of a pilot – who may not have gotten enough sleep or training.
- The mission to fix the eye that sees through time. The crew of Space Shuttle Atlantis takes the first of five risky spacewalks to repair the Hubble Telescope. We'll have the pictures from space live.
- After weeks of pressure from state and local law enforcement officials, Craigslist, the most popular classifieds site on the web, is getting rid of its controversial "erotic services" section. Police say a medical student accused of murdering a masseuse – found her there. Hear John Roberts’ exclusive interview with Craigslist CEO Jim Buckmaster.