Five things to know as you start your day

(CNN) -- A sea of challenges in the search for Malaysian jetliner. Russia and U.S. engage in tit-for-tat sanctions. And the fascination with Kurt Cobain lives on.

It's Friday, and here are the 5 things to know for your "New Day."


Sea of questions:

Australia says it wants to get answers for the families of those aboard the missing Malaysian jetliner. And it's scouring the southern Indian Ocean for objects it says may be related to the search for the plane. While this is the best lead yet on where plane might be, confirming it will be a lengthy process. The area is a remote, rarely traveled expanse of ocean far from commercial shipping lanes. But that has not stopped the massive search in the area more than 1,500 miles southwest of Australia.


Tit-for-tat sanctions:

It's a classic case of sanctions, and more sanctions. Yesterday, the U.S. blacklisted a bank and several Russians it described as "cronies" to President Vladimir Putin. Unbowed, Russia hit right back. It placed sanctions against nine top Americans, including House speaker John Boehner and Sen. John McCain. And there's more trouble in the horizon. The lower house of parliament in Moscow overwhelmingly approved a treaty yesterday to annex the Crimea region, upping the ante in the biggest crisis in East-West relations since the Cold War.



The Turkish prime minister vowed yesterday to ban Twitter. "Twitter, mwitter, we will eradicate it all," Recep Tayyip Erdogan said, followed by immediate disruptions on the social networking site. But as things go in that world, that's a sure way to make it even more popular. Outrage erupted. Hashtags surged. Word spread. Twitter swiftly offered subscribers an alternative way that uses cellphone instant messaging.


Fascination lives on: The public's fascination with Kurt Cobain goes on, long after he's gone. Seattle police recently developed film showing the scene where the Nirvana frontman's body was discovered. Shortly after, social networks erupted with posts suggesting there was something new in his death probe. Not true, cops said. "Mr. Cobain is still deceased and the case is still a suicide," Detective Renee Witt said. "We did not reopen the case."


Beware of callers!: If the phone rings and the caller says he represents the IRS, be suspicious. That's what the feds are saying about a nationwide phone scam that has stolen $1 million from thousands of unsuspecting people. "The largest scam of its kind" is how they described it. The caller warns that those who owe taxes must pay using a pre-paid debit card or wire transfer, or risk getting arrested or deported.

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