Breaking News from CBS

• FBI: Arrest made in Wash. ricin letter scare

  Grand jury indictment accuses Matthew Ryan Buquet of mailing a threatening communication to a U.S. district judge

• Over 50 injured following Ind. school buses crash

  A school bus slammed into the back of another, setting off a chain-reaction crash involving four buses

• Victims of deadly Oklahoma tornado

  24 people killed after deadly twister touches down in Moore, Oklahoma

• Video: 5/22: Residents return to tornado-ravaged neighborhoods; Undercover in a Bangladesh clothing factory

  The sight of the damage caused by Monday's tornado was almost more than some survivors could bear; Also, Lois Lerner, the IRS manager at the heart of the political targeting scandal, delivered an opening statement Wednesday before a congressional committee, but she refused to take any lawmakers' questions; And, Many American clothes come from factories in Bangladesh, which has a history of workplace disasters.

• Oklahoma family narrowly escaped death during tornado

  With the tornado fast approaching, the Falwell family decided to flee to a neighbor's storm shelter