Who is to blame?

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1. Headlines
   1. Crews comb Okla. rubble for survivors, victims

      Rescue teams combed through pulverized buildings and splintered homes early Tuesday after one of the deadliest tornadoes in U.S. history blasted through the suburbs of Oklahoma City, killing at least 24 people.

   2. More 'devastating' tornadoes possible Tuesday
   3. Israel, Syria clash on Golan Heights cease-fire line
   4. How to help Oklahoma tornado victims
   5. Trapped students had nowhere to hide from tornado
   6. Arias to address jury over possible death sentence
   7. Tales from the tornado: Survivors speak
2. Multimedia
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      Senators grill IRS chief over political scandal
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      Sights and sounds of the Oklahoma tornado
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      Paul: Senate committee 'should apologize to Apple'
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      Diver encounters rare whale shark off Florida coast