Evening News Online, 02.29.12

      |Wednesday: Disaster strikes the heart of America as deadly tornadoes rip across the Midwest; Also, Maine Sen. Olympia Snowe is retiring from Congress over a breakdown in bipartisanship, which has brought progress to a standstill; And, James Murdoch is stepping down from his role as executive chairman of News International as British police begin to comb through a mountain of evidence in a hacking scandal surrounding his father's media empire.

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