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U.S. safety investigators pouring over the wreckage of Asiana Airlines Flight 214 are also carefully examining the cockpit voice recorder for clues to the crash in San Francisco.
Normally, technicians listen for crew comments in the final stages of flight. But in this case, a preliminary reading of that tape indicated the Korean pilots busy trying to line up airport runway as their jetliner sank were pretty quiet – at that could be just as telling.
Investigators are well aware of potential cultural differences between U.S. and South Korean aviation crews.
While events leading to the crash are unclear, attention in the early going of the investigation has centered on actions of the crew.
(CNN) - Sarah Palin is stirring the pot again, suggesting she might seek office again.
"I've considered it because people have requested me to consider it. But, I'm still waiting to see what the lineup will be and hoping that - there again, there will be some new blood, new energy," she toldradio host Sean Hannity on Tuesday.
No, she's not thinking about the 2016 presidential race - yet. This time, she's eyeing next year's U.S. Senate race in Alaska, where Democrat Mark Begich is seeking a second term.
Boston Marathon bombing suspect Dzhokhar Tsarnaev pleaded not guilty on Wednesday to 30 federal counts.
Tsarnaev appeared in court wearing an orange jumpsuit with his feet shackled, but his hands free. He appears to have suffered some nerve damage to his face.
Tsarnaev fidgeted as the judge talked to him. At times, he appeared disinterested.
Then, when he stood to answer the 30 charges against him, he pleaded not guilty to each one, speaking with a distinct Russian accent.
The accent surprised his former wrestling coach and teammates who attended the arraignment. They said when they knew him, Tsarnaev never had such an accent.
His former wrestling coach told CNN he went to the courthouse to see if any of the old Tsarnaev remained. He said he did not see the boy he once knew.
Thirty victims and their families attended the arraignment.
Check out the video above for more of CNN's Deborah Feyerick report from Boston.
(CNN) - George Zimmerman left court-watchers waiting until the last minute Wednesday, but finally announced after his defense team offered their last witnesses that he would not testify in his own defense in the shooting of Trayvon Martin.
The defense rested its case Wednesday afternoon after Judge Debra Nelson refused a defense request to enter a judgment of acquittal without sending the case to the jury.
That left Zimmerman's father, Robert Zimmerman, as the last defense witness. He testified that it was his son who was screaming on the infamous 911 recording of the fatal altercation that claimed the 17-year-old Martin's life in 2012.